How do I concatenate comma separated values in SQL?

How do I combine comma separated values in SQL?

CREATE FUNCTION dbo. SplitStrings_XML ( @List VARCHAR(MAX), @Delimiter CHAR(1) = ‘,’ ) RETURNS TABLE WITH SCHEMABINDING AS RETURN ( SELECT Item = y.i.value(‘(./text())[1]’, ‘varchar(8000)’) FROM ( SELECT x = CONVERT(XML, ‘<i>’ + REPLACE(@List, @Delimiter, ‘</i><i>’) + ‘</i>’). query(‘. ‘) ) AS a CROSS APPLY x.

How do I concatenate two column values in SQL?

SELECT SOME_OTHER_COLUMN, CONCAT(FIRSTNAME, ‘,’, LASTNAME) AS FIRSTNAME FROM `customer`; Using * means, in your results you want all the columns of the table. In your case * will also include FIRSTNAME . You are then concatenating some columns and using alias of FIRSTNAME .

How can I get multiple column values in comma separated in SQL Server?

“select multiple rows of a column into a comma-separated list sql based on a list of columns” Code Answer

  1. Select CountryName from Application. Countries.
  2. Declare @val Varchar(MAX);
  3. Select @val = COALESCE(@val + ‘, ‘ + CountryName, CountryName)
  4. From Application. Countries Select @val;

How do I separate comma separated values in mysql?

You could use a prepared statement inside the stored procedure to achieve this. You can create the whole select query as a string inside a variable and then concatenate in the comma delimited string into its IN clause. Then you can make a prepared statement from the query string variable and execute it.

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How do I select comma separated values in mysql?

Use group_concat() function of mysql. The default separator between values in a group is comma(,). To specify any other separator, use SEPARATOR as shown below.

How can I merge two tables in SQL query?

Key learnings

  1. use the keyword UNION to stack datasets without duplicate values.
  2. use the keyword UNION ALL to stack datasets with duplicate values.
  3. use the keyword INNER JOIN to join two tables together and only get the overlapping values.

How do I have multiple rows in one row in SQL?

STUFF Function in SQL Server

  1. Create a database.
  2. Create 2 tables as in the following.
  3. Execute this SQL Query to get the student courseIds separated by a comma. USE StudentCourseDB. SELECT StudentID, CourseIDs=STUFF. ( ( SELECT DISTINCT ‘, ‘ + CAST(CourseID AS VARCHAR(MAX)) FROM StudentCourses t2.

How do you remove duplicates from a comma separated string in SQL?

User Defined Function has very simple logic behind it. It takes comma delimited string and then converts it to table and runs DISTINCT operation on the table. DISTINCT operation removes duplicate value. After that it converts the table again into the string and it can be used.

How do you remove comma separated duplicate string values?

7 Answers

  1. Split the string at the comma to get the sequence.
  2. Apply the Reverse op, you get 2 2 2 6 …. 4 2.
  3. Apply the Distinct, you get 2,6,3,4,25,12.
  4. Take the first 2 elements (2,6)
  5. Reverse them 6,2.
  6. Join in a new string with the comma sep.

How convert multiple rows to columns in SQL query?

By assigning a sequence or row_number to each category per user, you can use this row number to convert the rows into columns. Static PIVOT: If you want to apply the PIVOT function, then I would first suggest unpivoting the category and activity columns into multiple rows and then apply the pivot function.

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How do I concatenate two columns with a comma in Excel?

Combine data using the CONCAT function

  1. Select the cell where you want to put the combined data.
  2. Type =CONCAT(.
  3. Select the cell you want to combine first. Use commas to separate the cells you are combining and use quotation marks to add spaces, commas, or other text.
  4. Close the formula with a parenthesis and press Enter.
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