mysql avoid duplication of data inserted ignore

Others 2020-03-29 10:21:54 views: null

Table ignore ensure no duplicate data insertion.

Now we insert tags into a data table, the primary key is auto-incremented.

The first time you insert data, insert data successfully.

The second insertion of the same data, 0 is returned attention here. Success is not inserted.

We look at the data in the table, only one data.

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