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SQL query String field less than 10 how to check
2022-08-04 03:35:00 【CSDN q&a】
I want to check syl less than 10, there are 13 records less than 10 in total, but the syl field is of varchar type,
①I write like this
Only 8 were found, not all.
②I wrote this, I don't know how to convert it to int
What to do, how to check
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