mysql截取字符串中從開始到某個字符最後出現的位置

原創 梦回沉沦 2020-06-24 00:31 
SUBSTRING(pids,1,LENGTH(pids)-INStr(REVERSE(pids),',')+1)

效果
1,2,3,4 => 1,2,3,

具體要求可根據自己需求±1

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