把字符串按照分割符分解成不同的部分

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select regexp_substr('A,B,C,D,E', '[^,]', 1, level, 'i') as str from dual connect by level = length('A,B,C,D,E') - length(regexp_replace('A,B,C,D,E', ',', '')) 1;

select regexp_substr('A,B,C,D,E', '[^,]+', 1, level, 'i') as str
from dual
connect by level <=
length('A,B,C,D,E') - length(regexp_replace('A,B,C,D,E', ',', '')) + 1;

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