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https://dev.mysql.com/mysql-nutshell.html
Additionally: A server restart no longer cancels the effect of the AUTO_INCREMENT = N table option. If you modify an AUTO_INCREMENT column value to a value larger than the current maximum auto-increment value (in an UPDATE operation, for example), ... This section summarizes what has been added to, deprecated in, and removed from MySQL ...
https://dev.mysql.com/alter-table.html
To reset the current auto-increment value: ALTER TABLE t1 AUTO_INCREMENT = 13; You cannot reset the counter to a value less than or equal to the value that is currently in use. For both InnoDB and MyISAM, if the value is less than or equal to the ...
https://dev.mysql.com/innodb-fulltext-index.html
If you want to create your own FTS_DOC_ID column, the column must be defined as BIGINT UNSIGNED NOT NULL and named FTS_DOC_ID (all upper case), as in the following example: Note The FTS_DOC_ID column does not need to be defined as an AUTO_INCREMENT ... FULLTEXT indexes are created on text-based columns (CHAR, VARCHAR, or TEXT columns) to help speed up queries and DML operations on data contained within those columns, omitting any words that are defined as ...
https://dev.mysql.com/insert.html
Because AUTO_INCREMENT values are generated after other value assignments, any reference to an AUTO_INCREMENT column in the assignment returns a 0. For INSERT examples involving AUTO_INCREMET column values, see Section 3.6.9, “Using ... INSERT ...
https://dev.mysql.com/mysql-cluster-programs-ndb-desc.html
ndb_desc provides a detailed description of one or more NDB tables. Usage ndb_desc -c connection_string tbl_name -d db_name [options] ndb_desc -c connection_string index_name -d db_name -t tbl_name Additional options that can be used with ndb_desc ...
https://dev.mysql.com/partitioning-selection.html
Explicit selection of partitions and subpartitions for rows matching a given WHERE condition is supported. Partition selection is similar to partition pruning, in that only specific partitions are checked for matches, but differs in two key ...
https://dev.mysql.com/check-table.html
Some problems reported by CHECK TABLE cannot be corrected automatically: Found row where the auto_increment column has the value 0. This means that you have a row in the table where the AUTO_INCREMENT index column contains the value 0. In this case, ...option: { FOR UPGRADE | QUICK | FAST | MEDIUM | EXTENDED | CHANGED } CHECK TABLE checks a table or tables for ...
https://dev.mysql.com/create-index.html
CREATE [UNIQUE | FULLTEXT | SPATIAL] INDEX index_name [index_type] ON tbl_name (key_part,...) [index_option] [algorithm_option | lock_option] ... This guideline is especially important for InnoDB tables, where the primary key determines the ...
https://dev.mysql.com/delete.html
Auto-Increment Columns If you delete the row containing the maximum value for an AUTO_INCREMENT column, the value is not reused for a MyISAM or InnoDB table. There are some exceptions to this behavior for InnoDB tables, as discussed in Section ...
https://dev.mysql.com/innodb-restrictions.html
An AUTO_INCREMENT column ai_col must be defined as part of an index such that it is possible to perform the equivalent of an indexed SELECT MAX(ai_col) lookup on the table to obtain the maximum column value. InnoDB sets an exclusive lock on the end ... Limits on InnoDB tables are described under the following topics in this section: Maximums and Minimums Restrictions on InnoDB Tables Locking and Transactions Warning Before using NFS with InnoDB, review potential issues outlined in Using NFS with ...
Document created the 26/06/2006, last modified the 26/10/2018
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