问题
I have a table like
+--------+-------+
| id | name |
+--------+-------+
| 302345 | Name1 |
| 522345 | Name2 |
| 1X2345 | Name3 |
| 2X2345 | Name4 |
| 1X8765 | Name5 |
| 2X2123 | Name6 |
| 502345 | Name7 |
| M62345 | Name8 |
+--------+-------+
I want to take id that doesn't have prefix 30
,1X
,2X
. Like this I have more than 20 prefix to be excluded. I was using NOT LIKE
20 times and looking to shorten it. From some of stackoverflow question, I have found we can create a table and store all these values in a column and use that. But in my case I don't have permission to create table. Hence tried the below code but it is giving strange results.
SELECT *
FROM mytable
INNER JOIN (
SELECT '30%' Prefix
UNION ALL
SELECT '50%'
UNION ALL
SELECT '1X%'
) list ON id NOT LIKE prefix
FIDDLE HERE . Please suggest some alternative.
Expected output
+--------+-------+
| id | name |
+--------+-------+
| 522345 | Name2 |
+--------+-------+
| 502345 | Name7 |
+--------+-------+
| M62345 | Name8 |
+--------+-------+
回答1:
You could use a NOT EXISTS
with a VALUES
construct for all your prefixes.
Something like this:
SELECT *
FROM mytable mt
WHERE NOT EXISTS (SELECT 1
FROM (VALUES('30%'),('50%'),('1X%'),('2X%')/*,...*/)V(expr)
WHERE mt.id LIKE V.expr);
来源:https://stackoverflow.com/questions/63899521/multiple-not-like-in-sql-server