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drop table if exists auto_incr_test,auto_incr_test2
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Query OK, 0 rows affected
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create table auto_incr_test (id int not null auto_increment, name char(40), timestamp timestamp, primary key (id))
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Query OK, 0 rows affected
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insert into auto_incr_test (name) values ("first record")
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Query OK, 1 row affected
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insert into auto_incr_test values (last_insert_id()+1,"second record",null)
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Query OK, 1 row affected
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insert into auto_incr_test (id,name) values (10,"tenth record")
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Query OK, 1 row affected
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insert into auto_incr_test values (0,"eleventh record",null)
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Query OK, 1 row affected
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insert into auto_incr_test values (last_insert_id()+1,"12","1997-01-01")
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Query OK, 1 row affected
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insert into auto_incr_test values (12,"this will not work",NULL)
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ERROR 1062 at line 15: Duplicate entry '12' for key 1
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replace into auto_incr_test values (12,"twelfth record",NULL)
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Query OK, 2 rows affected
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select * from auto_incr_test
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id name timestamp
1 first record 19980817042654
2 second record 19980817042655
10 tenth record 19980817042655
11 eleventh record 19980817042655
12 twelfth record 19980817042655
5 rows in set
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create table auto_incr_test2 (id int not null auto_increment, name char(40), primary key (id))
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Query OK, 0 rows affected
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insert into auto_incr_test2 select NULL,name from auto_incr_test
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Query OK, 5 rows affected
Records: 5 Duplicates: 0 Warnings: 0
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insert into auto_incr_test2 select id,name from auto_incr_test
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Query OK, 3 rows affected
Records: 5 Duplicates: 2 Warnings: 0
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replace into auto_incr_test2 select id,name from auto_incr_test
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Query OK, 5 rows affected
Records: 5 Duplicates: 5 Warnings: 0
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select * from auto_incr_test2
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id name
1 first record
2 second record
3 tenth record
4 eleventh record
5 twelfth record
10 tenth record
11 eleventh record
12 twelfth record
8 rows in set
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drop table auto_incr_test,auto_incr_test2
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Query OK, 0 rows affected
Bye
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