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The position of the nth occurrence of MySQL in the string
2022-07-25 01:01:00 【coder_ monarch】
Like strings :
aad-bbd-ccd
Find string ‘d’ The first 2 The location of the second occurrence
SELECT LENGTH(SUBSTRING_INDEX( ‘aad-bbd-ccd,’, ‘d’, 2 )) + 1;
return :7
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