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https://dev.mysql.com/innodb-auto-increment-handling.html
InnoDB provides a configurable locking mechanism that can significantly improve scalability and performance of SQL statements that add rows to tables with AUTO_INCREMENT columns. To use the AUTO_INCREMENT mechanism with an InnoDB table, an ...
https://dev.mysql.com/example-auto-increment.html
You can also explicitly assign 0 to the column to generate sequence numbers, unless the NO_AUTO_VALUE_ON_ZERO SQL mode is enabled. For example: INSERT INTO animals (id,name) VALUES(0,'groundhog'); If the column is declared NOT NULL, it is also ...
https://dev.mysql.com/replication-features-auto-increment.html
Statement-based replication of AUTO_INCREMENT, LAST_INSERT_ID(), and TIMESTAMP values is carried out subject to the following exceptions: A statement invoking a trigger or function that causes an update to an AUTO_INCREMENT column is not replicated ...
https://dev.mysql.com/create-table.html
(Some valid select or union statement) CREATE TABLE creates a table with the given name. By default, tables are created in the default database, using the InnoDB storage engine. An error occurs if the table exists, if there is no default database, ...
https://dev.mysql.com/information-functions.html
It may be used to time how quickly MySQL processes the expression. The intended use is from within the mysql client, which reports query execution times: mysql> SELECT BENCHMARK(1000000,AES_ENCRYPT('hello','goodbye')); ...
https://dev.mysql.com/mysql-insert-id.html
my_ulonglong mysql_insert_id(MYSQL *mysql) Returns the value generated for an AUTO_INCREMENT column by the previous INSERT or UPDATE statement. Use this function after you have performed an INSERT statement into a table that contains an ...
https://dev.mysql.com/alter-table-examples.html
For NDB tables, it is also possible to change the storage type used for a table or column. row *************************** Table: t1 Create Table: CREATE TABLE `t2` ( `c1` int(11) DEFAULT NULL ) /*!50100 TABLESPACE ts_1 STORAGE DISK */ ...
https://dev.mysql.com/replication-options-master.html
This section describes the server options and system variables that you can use on replication master servers. You can specify the options either on the command line or in an option file. On the master and each slave, you must use the server-id ...
https://dev.mysql.com/mysql-cluster-install-example-data.html
Note The information in this section applies to NDB Cluster running on both Unix and Windows platforms. Working with database tables and data in NDB Cluster is not much different from doing so in standard MySQL. There are two key points to keep in ...
https://dev.mysql.com/getting-unique-id.html
If you insert a record into a table that contains an AUTO_INCREMENT column, you can obtain the value stored into that column by calling the mysql_insert_id() function. You can check from your C applications whether a value was stored in an ...
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Rechercher dans le manuel MySQL

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Document créé le 26/06/2006, dernière modification le 26/10/2018
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