Shulou(Shulou.com)06/01 Report--

In indodb_ 's storage engine, the primary key is the unique identifier. Usually, the row records in an application are inserted in the order in which the primary key is incremented.

Mysql > create table t (an int auto_increment, b varchar (30), primary key (a)); mysql > insert into t (aprit b) values (0L0) mysql > insert into t (Areco b) values (0L0); mysql > select * from t Tet Kui Kui + | a | b | +-+-+ | 1 | 0 | 2 | 0 | 0 | +-+-+

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