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update a table by comparing strings

Posted on 2016-09-07
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Last Modified: 2016-09-07
I had this question after viewing compare a value with a semicolon delimeted.

So based upon the above post this is what I would like to do

table 1 : userid
row 1      prs
row 2      ppp

table2
                   useridlist

row1         ccc;ddd;eee;PRS;rrr
row2         qqq;www;ttt


so i need a query that takes value for row 1 ('prs')  and compares it with useridlist of table 2 and since there is a match in row1 of table2 . since there is a match remove 'PRS' from table2 and update table two row with the following value :  ccc;ddd;eee;rrr

Thanks
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Question by:PratikShah111
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Accepted Solution

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Vitor Montalvão earned 2000 total points
ID: 41788080
You can do it with a single command by using REPLACE function:
UPDATE table2
SET useridlist = REPLACE(table2.useridlist,table1.userid,'')
FROM table2
    INNER JOIN table1 ON table2.id=table1.id

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NOTE: Run this first in a DEV environment before running it in Production.
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Author Closing Comment

by:PratikShah111
ID: 41788211
Thank you
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