Oracle uses a complete multi-table insert statement insert

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A grammar

Full table insert

insert all into table1 values() into table2 values() select * from table

After the execution, all the data in the table will table1 and table2 are inserted

Plus insert conditions

insert all when condition1 then into table1 values() when condition2 then into table2 values() select * from table

After the execution, will satisfy the condition table data is inserted into table1 condition1, data conditions are met condition2 inserted into table2

You can also write:

insert all when condition1 then into table1 values() else into table2 values() select * from table

Syntax two

Conditions insert

insert first when condition1 then into table1 values() when condition2 then into table2 values() select * from table

Difference: the method table for each record in the source table is inserted only once, even if a plurality of conditions is not satisfied repeated insertion