j**n
发帖数: 551 | 1 请问如何实现：
if a row is exist, then update it.
otherwise, insert a new row.
procedure(in argu1, in argu2)
if (select * from table1 where column1=argu1) exist // how to implement
this???
then (update table set column2=argu2 where column1=argu1)
else
insert into table set column1=argu1, column2=argu2.
多谢。 |
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