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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
For example: INSERT INTO animals (id,name) VALUES(NULL,'squirrel'); When you insert any other value into an AUTO_INCREMENT column, the column is set to that value and the sequence is reset so that the next automatically generated value follows ...
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 ...This occurs because the order in which the rows are numbered depends on the specific storage engine used for the table and the order in which the rows were ...
https://dev.mysql.com/create-table.html
AUTO_INCREMENT An integer or floating-point column can have the additional attribute AUTO_INCREMENT. When you insert a value of NULL (recommended) or 0 into an indexed AUTO_INCREMENT column, the column is set to the next sequence value. To retrieve ... CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name (create_definition,...) [table_options] [partition_options] CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] [table_options] [partition_options] [IGNORE | REPLACE] [AS] query_expression CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name { LIKE old_tbl_name | (LIKE old_tbl_name) } create_definition: col_name column_definition | {INDEX|KEY} [index_name] [index_type] (key_part,...) [index_option] ...
https://dev.mysql.com/information-functions.html
LAST_INSERT_ID(), LAST_INSERT_ID(expr) With no argument, LAST_INSERT_ID() returns a BIGINT UNSIGNED (64-bit) value representing the first automatically generated value successfully inserted for an AUTO_INCREMENT column as a result of the most ...It ...
https://dev.mysql.com/alter-table-examples.html
For MyISAM tables, you can set the first sequence number by executing SET INSERT_ID=value before ALTER TABLE or by using the AUTO_INCREMENT=value table option. With MyISAM tables, if you do not change the AUTO_INCREMENT column, the sequence number ...For NDB tables, it is also possible to change the storage type used for a table or ...
https://dev.mysql.com/mysql-insert-id.html
uint64_t 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 AUTO_INCREMENT ...This is true whether the value is automatically generated by storing the special values NULL or 0 into the column, or is an explicit nonspecial ...
https://dev.mysql.com/replication-options-master.html
Attempting to set the value of auto_increment_increment or auto_increment_offset to a noninteger value produces an error, and the actual value of the variable remains unchanged. When Group Replication is started on a server, the value of ... This ...
https://dev.mysql.com/numeric-type-attributes.html
When you insert a value of NULL into an indexed AUTO_INCREMENT column, the column is set to the next sequence value. (AUTO_INCREMENT sequences begin with 1.) Storing 0 into an AUTO_INCREMENT column has the same effect as storing NULL, unless the ...
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 ...When ...
Document created the 26/06/2006, last modified the 26/10/2018
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