select column1,column2,column3 from table where column1 !='xxx'
select column1,column2,column3 from table where column1='%xxx'
select column1,column2,column3 from table where column1='%xxx%'
select column1,column2,column3 from table where DAY(column1)=xxx
select column1,column2,column3 from tablewhere column1='xxx' or column1='yyy' and column2='zzz'
select column1,column2,column3 from table where column1=1234567
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