How do you select ID with comma separated values in SQL?

How do you select ID with comma separated values in SQL?

The returned Employee Ids are separated (delimited) by comma using the COALESCE function in SQL Server.

1. CREATE PROCEDURE GetEmployeesByCity.
2. @City NVARCHAR(15)
3. ,@EmployeeIds VARCHAR(200) OUTPUT.
4. SET NOCOUNT ON;
5. SELECT @EmployeeIds = COALESCE(@EmployeeIds + ‘,’, ”) + CAST(EmployeeId AS VARCHAR(5))
6. FROM Employees.

How can I get distinct values from a comma separated string in SQL?

1. DECLARE @Production_Product TABLE (name varchar(10));
2. INSERT INTO @Production_Product VALUES (‘aaa’),(‘bbb’),(‘ccc’),(‘ccc’);
3. DECLARE @listStr varchar(max)=”;
4. SELECT @listStr=@listStr+
5. WHEN @listStr=” THEN ”+name.
6. ELSE ‘,’+name.
7. FROM (SELECT DISTINCT name FROM @Production_Product) AS xxx.

How to query comma separated in SQL?

Now for the perfect comma separated value we must remove the first comma in the above query result. This can be done using “STUFF” or the SUBSTRING function. STUFF deletes a specified length of characters from the given string and inserts another set of characters at a specified starting point.

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

Pseudocode: Make a postgresql function that receives as input the comma delimited string, and creates another array in memory. Split the string on comma, trim whitespace and enumerate each item, if the item doesn’t appear in the new list, then add it.

What is coalesce in SQL w3schools?

SQL Server COALESCE() Function The COALESCE() function returns the first non-null value in a list.

What is correct select Find_in_set (‘ M NULL?

FIND_IN_SET() function MySQL FIND_IN_SET() returns the position of a string if it is present (as a substring) within a list of strings. This function returns 0 when search string does not exist in the string list and returns NULL if either of the arguments is NULL.