create or replace function gd_substrbysep(sourceString varchar2, destString varchar2, appearPosition number) return varchar2 is substring varchar2(255); --作者:zj --功能:按分隔符截取字符串 --参数:1、原始字符串;2、分隔符;3、截取第几段 begin substring := substr(destString || sourceString || destString, instr(destString || sourceString || destString, destString, 1, appearPosition) + 1, instr(destString || sourceString || destString, destString, 1, appearPosition + 1) - instr(destString || sourceString || destString, destString, 1, appearPosition) - 1); return(substring); end gd_substrbysep; |
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