How to split a string after specific character in SQL Server and update this value to specific column

Question

I have table with data 1/1 to 1/20 in one column. I want the value 1 to 20 i.e value after \'/\'(front slash) is updated into other column in same

Answer 1

Use CHARINDEX. Perhaps make user function. If you use this split often.
I would create this function:

CREATE FUNCTION [dbo].[Split]
(
    @String VARCHAR(max),
    @Delimiter varCHAR(1)
)
RETURNS TABLE 
AS
RETURN 
(
    WITH Split(stpos,endpos) 
    AS(
        SELECT 0 AS stpos, CHARINDEX(@Delimiter,@String) AS endpos
        UNION ALL
        SELECT endpos+1, CHARINDEX(@Delimiter,@String,endpos+1)
            FROM Split
            WHERE endpos > 0
    )
    SELECT 'INT_COLUMN' = ROW_NUMBER() OVER (ORDER BY (SELECT 1)),
        'STRING_COLUMN' = SUBSTRING(@String,stpos,COALESCE(NULLIF(endpos,0),LEN(@String)+1)-stpos)
    FROM Split
)
GO

Answer 2

From: http://www.sql-server-helper.com/error-messages/msg-536.aspx

To use function LEFT if not all data is in the form '1/12' you need this in the second line above:

Set Col2 = LEFT(Col1, ISNULL(NULLIF(CHARINDEX('/', Col1) - 1, -1), LEN(Col1)))

Answer 3

Try this:

UPDATE YourTable
SET Col2 = RIGHT(Col1,LEN(Col1)-CHARINDEX('/',Col1))

Answer 4

I know this question is specific to sql server, but I'm using postgresql and came across this question, so for anybody else in a similar situation, there is the split_part(string text, delimiter text, field int) function.

Answer 5

SELECT emp.LoginID, emp.JobTitle, emp.BirthDate, emp.ModifiedDate  , 
      CASE  WHEN emp.JobTitle  NOT LIKE '%Document Control%'  THEN emp.JobTitle
            ELSE SUBSTRING(emp.JobTitle,CHARINDEX('Document Control',emp.JobTitle),LEN('Document Control'))
      END 
      ,emp.gender,emp.MaritalStatus
FROM   HumanResources.Employee [emp]
WHERE  JobTitle LIKE '[C-F]%'

Answer 6

Please find the below query also split the string with delimeter.

Select Substring(@String1,0,CharIndex(@delimeter,@String1))