sql stuff rows into string

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Concatenate many rows into a single text string? The header of the STUFF () function accepts the following arguments: Delete 3 characters from a string, starting in position 1, and then insert -- if a comma exists in the csv string, then -- extract the single left most value from the csv string and use that as the split value. Making the assumption that you won't need them is what is dangerous. This is a popular approach for this problem. WebAs a single column and a single row you can do this DECLARE @out as varchar (max) SET @Out = '' SELECT @Out = @Out + [User] + ' says: ' + Observation + CHAR (13) + STRING_ESCAPE (Transact-SQL) Asking for help, clarification, or responding to other answers. Thanks again. If you want to understand how each iteration of the CTE processes and produces different rows, then run this modified version of the first query. The STUFF function inserts a string into another string. It deletes a specified number of characters from the first string starting at the specified position and But you can try this out if it suits your needs and if none of the above discussed methods work for you the way you want them to. @jnm2: yeah, I wish Microsoft would listen and finally give us a, Simple and elegant answer. Does integrating PDOS give total charge of a system? Iam getting so much of confuse how variables are evaluating. To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation. 07.05.2021 SQL Server, CTE 3 min read, If I had a nickel for everytime I had to convert a comma-separated string into individual rows in SQL Server, I'd be filthy rich right now.. replaceWith_expression If the length is zero, then the function will insert the replacementString at the beginning of the string_expression. If length is negative, a null string is returned. Obviously a FOREACH loop in C# code would do this, but how do I do it in SQL? REPLACE (Transact-SQL) The solution above will give incorrect results if a 2018 Herald International Research Journals. More details on the various methods here. The following example returns a character string created by deleting three characters from the first string, abcdef, starting at position 2, at b, and inserting the second string at the deletion point. This also helps to identify the value contained in a column that's specified by the user. length can be of type bigint. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. In the following example, the STUFF() function is used in masking sensitive data like the passport number. answered many times but watch out, not all FOR XML PATH concatenations implementations will properly handle the XML special characters (<, &, >, etc) like my answer to a previous answer will: @marc_s This is dangerous. SQL Query - Concatenating Results into One String [duplicate], How to concatenate text from multiple rows into a single text string in SQL Server. How did muzzle-loaded rifled artillery solve the problems of the hand-held rifle? All Rights Reserved. Are there conservative socialists in the US? Sudo update-grub does not work (single boot Ubuntu 22.04), Penrose diagram of hypothetical astrophysical white hole. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. ', 13, 1, ' is fun! In SQL Server 2005 SELECT Stuff( character_expression Is an expression of character data. Wondering why we are concatenating a , with the csv data in CHARINDEX()? in position 13: Get certifiedby completinga course today! Try removing the concat operators and running the query. Here is a recursive CTE that produces the required result : ;WITH CTE_Concatenated AS ( SELECT RowID, While using this site, you agree to have read and accepted our terms Returns NULL if any argument is NULL. Here is an answer on stackoverflow illustrating the use of this method in splitting delimited strings. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. FORMATMESSAGE (Transact-SQL) If start is negative or zero, a null string is returned. The STUFF function inserts a string into another string. 1 Answer. character_expressioncan be a constant, variable, or column of either character or binary data. I have never had a chance to use it as the project servers that I work on(and my own computer) are not using SQL Server 2016 but if you are using that version then this will probably be a better and more straight forward option than using a CTE or XML. character_expression can be a constant, variable, or column of either character or binary data. Unexpected query results may occur. This answer may return unexpected results For consistent results, use one of the FOR XML PATH methods detailed in other answers. Use COALESCE : But you can use this if you want. STUFF() will kind of do the opposite. Name of a play about the morality of prostitution (kind of), TypeError: unsupported operand type(s) for *: 'IntVar' and 'float', Sudo update-grub does not work (single boot Ubuntu 22.04). Sorted by: 9. We can also able to delete or cut down the specific string and insertion of the other string also can be done by using the STUFF () function. rev2022.12.9.43105. Does T-SQL have an aggregate function to concatenate strings? For each row of comma-separated values, the function will return one or more rows of split values. I mostly publish stuff on Javascript, React, PHP and Wordpress. Lets first create a dummy table with some dummy comma-separated strings as data that we can then use for all our queries. The rubber protection cover does not pass through the hole in the rim. Syntax STUFF ( string, start, length, new_string) Parameter Values Technical Details More Examples Example No really, I have had to do this enough times that I finally decided to write about my most preferred ways to achieve this. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Find centralized, trusted content and collaborate around the technologies you use most. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Azure SQL Managed Instance My table format is like this: Name RAM GURU Sundar Shyam Inba Kalai I need output like this: One method not yet shown via the XML data() command in SQLServer is: Assume a table called NameList with one column called FName, SELECT FName + Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, How to concatenate text from multiple rows into a single text string in SQL Server. So we'll create a function that will take in a comma separated string and return a set of rows of the split values. It can be a constant, variable, or a table column of character or binary data. If you have a problem with that XML encoding - then yes, you must look at the solution proposed by @KM which works for those characters, too. TRANSLATE (Transact-SQL) I have two tables, one contains column names and second related data. Are defenders behind an arrow slit attackable? Tip: Also look at the REPLACE () function. CONCAT implicitly converts all arguments to string types before concatenation. We have used CROSS APPLY because an INNER JOIN wouldn't work with a function call on the right which uses a column value(a.csv) from the table on the left. How do I UPDATE from a SELECT in SQL Server? In this example, the length is a negative integer. Oracle 11g Release 2 supports the LISTAGG function. Documentation here . COLUMN employees FORMAT A50 @AlexanderMP's answer is correct, but you can also consider handling nulls with coalesce: For SQL Server 2005 and above use Coalesce for nulls and I am using Cast or Convert if there are numeric values -, from msdn Do not use a variable in a SELECT statement to concatenate values (that is, to compute aggregate values). Start: An integer that specifies the position from where the deletion and insertion start. Something can be done or not a fit? start_position is an Use COALESCE - Learn more from here For an example: 102 103 104 Then write the below code in SQLServer, Declare @Numbers AS Nvarchar(MAX) -- It The rubber protection cover does not pass through the hole in the rim. The implicit conversion to strings follows the existing rules for data type conversions. '); W3Schools is optimized for learning and training. Applies to: How to pivot unknown number of columns & no aggregate in SQL Server? If you see the "cross", you're on the right track. STRING_AGG is an aggregate function that takes all expressions from rows and concatenates them into a single string. The first 5 characters of the passport number are replaced with 'xxxxx' as shown in the query below. Concatenate Rows using a Scalar Variable 5. DropDownList (String, String, IEnumerable, Object) Returns an HTML drop-down list control that has the specified name and custom attributes defined by an attribute object, and that contains the specified list items and default item. Is an integer that specifies the number of characters to delete. If the start is negative, zero, or longer than the first expression, then the. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. For now I have considered that all the columns will be included in final @James- Hmm..just copied that from OP's Question have updated it now..thanksbtw dang it you did beat me to it.. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. WebMicrosoft SQL Server String Aggregate functions in SQL Server Using STUFF for string aggregation Fastest Entity Framework Extensions Bulk Insert Bulk Delete Bulk Update Bulk Merge Example # We have a Student table with SubjectId. WebDefinition and Usage The STUFF () function deletes a part of a string and then inserts another part into the string, starting at a specified position. Can virent/viret mean "green" in an adjectival sense? STUFF: Delete a part of a string and then insert another substring into the string starting at a specified position. PostgreSQL arrays are awesome. Example: Create some test data: postgres=# \c test Here is another real life example that works fine at least with 2008 release (and later). of use and privacy policy. Lets go through this step-by-step by first looking at why we are using LEFT() and STUFF(). In this example, the STUFF() function is used to format a date from MMDDYYYY format to MM/DD/YYYY format. Adventure works example.Previous video uses coalesce: https://www.youtube.com/watch?v=1kfp0s-lc3M For the splitting use-cases that I have encountered, this seemed like somewhat of an overkill in my opinion. Not the answer you're looking for? If start is longer than the first character_expression, a null string is returned. Search text in stored procedure in SQL Server. part into the string, starting at a specified position. Concatenate Rows using STRING_AGG 2. It does not add the separator at the end of the result string. select name from names o/p: name(col) s r i n u query 1. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Debian/Ubuntu - Is there a man page listing all the version codenames/numbers? SQL STUFF function is used to delete a sequence of given length of characters from a string and inserting the given sequence of characters from the specified starting index. -- extract the rest of the csv string leaving out the split value. B. Data Types (Transact-SQL) Concatenate Rows using XML 3. CONCAT (Transact-SQL) One word of warning from me: this approach is a lot more resource and processing intensive - just so you know. Azure Synapse Analytics The error I get is, Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. SQL Server 2017+ and SQL Azure: STRING_AGG Starting with the next version of SQL Server, we can finally concatenate across rows without having to r 2) No need to strip off an extra separator at the end. What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? WebCode language: SQL (Structured Query Language) (sql) The STUFF() function accepts four arguments: input_string is the character string to be processed. TSQL: How do I join a subsequence result? In the following simple example, a given string 'abcdefgh' is replaced from the third character to a length of six characters, by 'xxxx'. The following shows the syntax of the STRING_AGG () function: STRING_AGG ( input_string, separator ) [ order_clause ] What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. If the length to delete is longer than the first string, it is deleted to the first character in the first string. wipes out the "superfluous" first comma, to give you the result you're probably looking for. You'll need to concatenate the first and last names using FOR XML PATH or a similar solution. I have a sql function that includes this code: DECLARE query2 i assign empty strings directly to query but it showing different results can some explain these iam very much new to sql server. Hi!, I'm Saurabh Misra, a full-stack software developer. The return value is NULL. That worked perfectly, extremely help. length If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: SELECT STUFF('SQL Tutorial', 1, 3, 'HTML'); SELECT STUFF('SQL Tutorial! In SQL S I don't see why it would be. I want to pull a list of company names and as a field for that query, I want to select all the employees for that company. WebIn SQL Server, the STUFF () function inserts a string into another string. Allow non-GPL plugins in a GPL main program. Want to check how much you know SQL Server? this is definitely the best and most elegant solution, thanks a lot! Add a column with a default value to an existing table in SQL Server, How to check if a column exists in a SQL Server table, LEFT JOIN vs. LEFT OUTER JOIN in SQL Server, Insert results of a stored procedure into a temporary table. Print bullet before each sentence + new line after each sentence SQL, Get SQL Server's constraints list without redundancy. CONCAT takes a variable number of string arguments and concatenates (or joins) them into a single string. This enables you to do things like insert a word at a specific position. start In the below example, the replacementString is an empty string. Find centralized, trusted content and collaborate around the technologies you use most. Are there breakers which can be triggered by an external signal and have to be reset by hand? SUBSTRING: Extract a substring within a string starting from a specified location with a specified length: TRANSLATE Returns character data if string_expression is of character data type. and the STUFF puts a "nothing" character at the first character, e.g. Insert results of a stored procedure into a temporary table. An error is raised if the resulting value is larger than the maximum supported by the return type. start Is an integer value that specifies the location Why would Henry want to close the breach? CONCAT implicitly converts null values to empty strings. Is an integer value that specifies the location to start deletion and insertion. Delete 1 character from a string, starting in position 13, and then insert " did anything serious ever run on the speccy? use CAST(int_col_name as varchar(10)), This answer is useful because you can format it further by concatenating any string text you want, eg, '(' + myCol + '_' + myOtherCol + ')', Yes, I forgot about coalesce/isnull. (NULL values are handled by James Wisemann 's variation on this answer), if you use this with an integer column it will try to Add them together and fail. If the above "SQL Server specific" ways don't work for you, we can always rely on old-school application programming methods like using a LOOP. I am trying to dynamically convert rows into columns. WebThe query needs to return one row and one column so that the results pane in SQL Server Management Studio looks like this : Solution 1 : Using a Recursive CTE SQL Server 2005 opened up the possibility of using recursion within a SQL statement. If the start position is 0, a null value is returned. First things first, we will use the following CSS for the styling:. This method is shorter but uses XQuery which I personally am not a big fan of. It deletes a specified length of characters in the first string at the start position and then inserts the second string into the first string at the start position. It deletes a specified number of characters from the first string starting at the specified position and inserts the given second string from that position. In the following example dempnstrate different start and length parameters. If you are on SQL Server 2017 or Azure, see Mathieu Renda answer . I had a similar issue when I was trying to join two tables with one-to-many rel While using W3Schools, you agree to have read and accepted our, Required. The following code is used to concatenate many rows into a single text string with comma separated using SQL Server COALESCE function. UPDATE: OK - I understand the comments - if your text in the database table already contains characters like <, > or &, then my current solution will in fact encode those into <, >, and &. MySQL: How to join three tables in one query with an assign table? LEFT() will basically extract the individual values from CSV strings that we'll then use to generate the rows. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. You'll need to concatenate the first and last names using FOR XML PATH or a similar solution. Is it appropriate to ignore emails from a student asking obvious questions? It also allows you to replace a word at a specific position. This method has been introduced in SQL Server 2016 and seems to be a dedicated solution to our problem. If length is zero, insertion occurs at start location and no characters are deleted. If the length is longer than the first string or string_expression, then the whole string_expression is deleted. Here the requirement is to concatenate based on subjectId. Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? TutorialsTeacher.com is optimized for learning web technologies step by step. Where does the idea of selling dragon parts come from? Analytics Platform System (PDW). I write articles and tutorials aboutwellfull-stack software development. Examples might be simplified to improve reading and basic understanding. Not the answer you're looking for? QUOTENAME (Transact-SQL) 1. How can I get column names from a table in SQL Server? WebBy using the STUFF () we can able to add one string into another string and also, and we can able to convert the date and time format. Ready to optimize your JavaScript with Rust? It is an integer. So in the anchor member, it will extract 20,45,68 out of 18,20,45,68 and Sansa,Arya,Robb,Bran,Rickon out of Jon,Sansa,Arya,Robb,Bran,Rickon. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Making statements based on opinion; back them up with references or personal experience. Concatenate Rows using STRING_AGG Why does my stock Samsung Galaxy phone/tablet lack some features compared to other Samsung Galaxy models? You get an error. In SQL Server, you can use the T-SQL STUFF() function to insert a string into another string. XML PATH adds the element tag to XML result set. See image below See below T-SQL script CREATE FUNCTION dbo.UFN_SEPARATES_COLUMNS ( @TEXT varchar (8000) ,@COLUMN WebHow to concatenate text from multiple rows into a single text string in SQL Server (47 answers) Closed 7 years ago. The argument N is interpreted as an integer, but may be specified as an integer or a string. Using COALESCE function - concatenate many rows into a single text string output in SQL Server. In MySQL, there is a function, GROUP_CONCAT() , which allows you to concatenate the values from multiple rows. Example: SELECT 1 AS a, GROUP_CONCA In SQL Server, the STUFF() function inserts a string into another string. CROSS APPLY is similar to an INNER JOIN but it has the advantage that it can work with complex expressions instead of simple result set producing queries. I'm trying to use a sub query on a select statement for a field value but I can't seem to figure out the correct syntax. A. Concatenate Rows using JSON 4. But wouldn't it make better sense to check. This is the original query which uses simple max() to get at least one of the values: Improved version, where the main improvement is that we show all values comma separated: Note that we have solved all possible NULL case issues that I can think of and also we fixed an error that we got for numeric values (field Sorting). Connect and share knowledge within a single location that is structured and easy to search. We'll then use this function in a query and pass it comma-separated string data one row at a time. WebTo create this function, we use separator character position in relation to string through the CHARINDEX and SUBSTRING methods. -- insert the split value into the return table. No characters are deleted from the string_expression. More details on the various methods here. The number of characters to delete from, SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Examples might be simplified to improve reading and learning. The first select statement in the script below demonstrates how it inserts a second string into the main string at the specified start position whereas the second select statement replaces part of the main string with the second string. Subscribe to TutorialsTeacher email list and get latest updates, tips & tricks on C#, .Net, JavaScript, jQuery, AngularJS, Node.js to your inbox. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? test Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Do check it out in case you need more insight and tips on how to split delimited strings into rows. start can be of type bigint. Providing NULL as the replaceWith_expression, removes characters without inserting anything. Returns binary data if character_expression is one of the supported binary data types. SELECT deptno, LISTAGG(ename, ',') WITHIN G T-SQL STUFF () Function STRING_AGG (Transact-SQL) In the Combine Rows Based on Column dialog box, you need to do as follows. One between DD and MM and another between MM and YYYY, as shown below. Is an expression of character data. WebUsing for xml path('') to convert all rows into a string. Is an expression of character data. Select the column you want to concatenate, click Combine button, and then specify a separator from the context menu (here we select Warehouse, Parallel Data Warehouse. It deletes a specified length of characters in the first string at the start position and then inserts the second string into the first string at the start position. Are the S&P 500 and Dow Jones Industrial Average securities? -- use the entire string as the split value. It will replace the individual row value extracted by LEFT() with a '' meaning it'll remove the individual row values from the CSV data which will then be used by the future iterations of the CTE. WebCONV (N,from_base,to_base) Converts numbers between different number bases. When using SC collations, both character_expression and replaceWith_expression can include surrogate pairs. REVERSE (Transact-SQL) It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Are there any limitations to the use of this method ? Thanks for reading and keep on rocking!. It requires a minimum of two input values; otherwise, CONCAT will raise an error. If length is longer than the first character_expression, deletion occurs up to the last character in the last character_expression. All SQL Server versions @marc_s For most use cases, how can you know ahead of time if these characters will ever show up in the future? Thank you sir for that information. -- use the CTE and generate the final result set, id csv split_values future_cte_iteration_value, ----------- ----------------------------------- ------------- ------------------------------, 1 18,20,45,68 18 20,45,68, 2 Jon,Sansa,Arya,Robb,Bran,Rickon Jon Sansa,Arya,Robb,Bran,Rickon, 3 56 56, id split_values csv iteration, ----------- ------------ ------------------------------ -----------, 1 18 20,45,68 0, 2 Jon Sansa,Arya,Robb,Bran,Rickon 0, 3 56 0, 1 20 45,68 1, 2 Sansa Arya,Robb,Bran,Rickon 1, 1 45 68 2, 2 Arya Robb,Bran,Rickon 2, 1 68 3, 2 Robb Bran,Rickon 3, 2 Bran Rickon 4, 2 Rickon 5. Microsoft's documentation on the STUFF () function states: The STUFF function inserts a string into another string. A Computer Science portal for geeks. replacementString: A substring that should be replaced in the string_expression. Select the column with same value you want to concatenate cells according to, and then click the Primary Key button. https://www.tutorialgateway.org/sql-concatenate-rows-into-string This is my most preferred way since it is simple and easily understandeable. If the start position or the length is negative, or if the starting position is larger than length of the first string, a null string is returned. So in the anchor member, it will extract 18 out of 18,20,45,68 and Jon out of Jon,Sansa,Arya,Robb,Bran,Rickon. Connect and share knowledge within a single location that is structured and easy to search. The simplest and straight forward way to concatenate rows into a string value is to use FOR XML PATH in a select query. character_expression can be a constant, variable, or column of either character or binary data. Any ideas on what I'm doing wrong? Expression values are implicitly converted to string types and then concatenated. LEFT () will basically extract the individual values from CSV strings that Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? WebA table-valued function that splits a string into rows of substrings based on a specified separator. Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? To learn more, see our tips on writing great answers. is fun!" If you don't know how to write Common Table Expressions or CTEs in SQL Server, I would highly suggest that you .css-1od09yo{color:var(--theme-ui-colors-primary,#6b46c1);-webkit-text-decoration:none;text-decoration:none;}.css-1od09yo:hover{-webkit-text-decoration:underline;text-decoration:underline;}read this article first to help you get up to speed with them before proceeding. rev2022.12.9.43105. I have a sql function that includes this code: I need to concatenate all results from the select query into CodeNameString. Ready to optimize your JavaScript with Rust? This FOR XML PATH method can be SQL Server (all supported versions) string_expression: A string of character data. .value('text()[1]','nvarchar(max)'),1,2,N'') SQL ; WITH ABC (FId, FName) AS ( SELECT 1, CAST ( '' AS VARCHAR ( 8000 )) UNION ALL SELECT B.FId + 1, B.FName + A.FName + ', ' FROM ( And the above query will return SELECT Row_Number () OVER ( ORDER BY FId) AS RN, FName FROM tblTest) A INNER JOIN ABC B ON A.RN = B.FId ) SELECT TOP 1 FName FROM ABC Where does the idea of selling dragon parts come from? WebTo concatenate multiple rows into a single string using COALESCE method first we need to declare a variable of varchar type to store combined strings inside the coalesce, use a Now, there have been some topics on splitting string into rows in t-sql ( Turning a Comma Separated string into individual rows comes to mind), but apart from WebThe STRING_AGG () is an aggregate function that concatenates rows of strings into a single string, separated by a specified separator. Azure SQL Database Returns a string representation of the number N, converted from base from_base to to_base. At what point in the prequels is it revealed that Palpatine is Darth Sidious? This stackoverflow question helped me out a great deal in writing this article. Concatenate Rows using a recursive CTE method. The length parameter counts each surrogate in character_expression as a single character. In the query, just replace tblCsvData with your table and the column csv with your column that has delimited values. Tip: Also look at the REPLACE() function. String Functions (Transact-SQL), More info about Internet Explorer and Microsoft Edge. SQL Server: Can I Comma Delimit Multiple Rows Into One Column? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Can you show documentation on KM's method being a lot more resource intensive? Lets go through this step-by-step by first looking at why we are using LEFT () and STUFF (). We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Returns character data if character_expression is one of the supported character data types. You can use STUFF and XML PATH functions to covert multiple rows into single comma separator rows. Length: The number of characters to delete from the first string. So the string_expression starting from the eighth position to a length of 4 is replaced by a space as shown in the result. Should teachers encourage good students to help weaker ones? "HTML" in position 1: The STUFF() function deletes a part of a string and then inserts another How do I create a comma-separated list using a SQL query? I must echo KM's comment above. How do I perform an IFTHEN in an SQL SELECT? Consider the below example with a modified anchor member query to better understand the role of LEFT() and STUFF(). Thanks for contributing an answer to Stack Overflow! Heres the official syntax: STUFF ( character_expression , start , length , replaceWith_expression ) character_expression is You can find more information about it in Microsoft's documentation. (SELECT N', ' + Name FROM Names FOR XML PATH(''),TYPE) If you're on SQL Server 2005 or up, you can use this FOR XML PATH & STUFF trick: The FOR XML PATH('') basically concatenates your strings together into one, long XML result (something like ,code1,code2,code3 etc.) This is because all expressions in the SELECT list (including assignments) are not guaranteed to be executed exactly once for each output row, The above seems to say that concatenation as done above is not valid as the assignment might be done more times than there are rows returned by the select. MOSFET is getting very hot at high frequency PWM, Better way to check if an element only exists in one array, central limit theorem replacing radical n with n. Is there any reason on passenger airliners not to have a physical lock between throttles? The concatenation helps the query handle single values with no commas like 56. SELECT STUFF('One match', 5, 0, 'day ') GO SELECT STUFF('One match', 5, 4, 'day ') GO STUFF function These extracted values will be passed on to the next iteration of the CTE. Can I Comma Delimit Multiple Rows Into One Column? Do bracers of armor stack with magic armor enhancements and special abilities? CONCAT_WS (Transact-SQL) Something can be done or not a fit? Two STUFF() functions are used to insert /. In the following example, 'nice' is deleted and replaced with the word 'good'. This expression replaces length characters of character_expression beginning at start. Ways to Split delimited column into multiple rows 1. You are now connected to database "test" as user "hgimenez". 1) No need to initialize @Names with an empty string value. query1 how all rows are concatenated with comma, there is no while loop there ? If that is something that interests you, then you are more than welcome to subscribe to my newsletter. 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