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t_a{
id ,
name,
age,
pid, ¶ÔÓ¦t_b(id)
}
t_b{
id£¬
ywlx£¬
}
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String sql = "select name,age,ywlx from t_a where 1=1";
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ÉÏÃæµÄ"select name,age,ywlx from t_a where 1=1";Óï¾ä¹Ì¶¨£¬
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SQL code:
String sql = "select name,age,ywlx
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