create table test( col_char char(4) ); insert into test values('a'); insert into test select 'a 'from dual; insert into test values ('a000'); insert into test values('abc'); select col_char||'''' from test; select replace(col_char,' ', '0') from test; select * from test where col_char='a '; drop table test;
char类型补空格引发的案子
不多说,都懂的:
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转载自benjaminyu.iteye.com/blog/1887840
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