https://dev.mysql.com/locking-service.html
Lock acquisition calls take an integer timeout value that indicates how many seconds to wait to acquire locks before giving up. For general information about user-defined functions, see Section 29.4.2, “Adding a User-Defined Function”. The ...
https://dev.mysql.com/myisam-storage-engine.html
The only requirements for binary portability are that the machine uses two's-complement signed integers and IEEE floating-point format. MyISAM is based on the older (and no longer available) ISAM storage engine but has many useful extensions. Table ...
https://dev.mysql.com/myisampack.html
empty-fill The number of integer columns that do not occupy the full byte range of their type. When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when ...
https://dev.mysql.com/mysql-affected-rows.html
An integer greater than zero indicates the number of rows affected or retrieved. uint64_t mysql_affected_rows(MYSQL *mysql) mysql_affected_rows() may be called immediately after executing a statement with mysql_query() or mysql_real_query(). It ...
https://dev.mysql.com/mysql-cluster-backup-using-management-client.html
Before starting a backup, make sure that the cluster is properly configured for performing one. If an existing backup_id value is used, the backup fails with the error Backup failed: file already exists. If used, the backup_id must follow START ...
https://dev.mysql.com/mysql-cluster-ndbinfo-blocks.html
Table 22.322 Columns of the blocks table Column Name Type Description block_number integer Block number block_name string Block name To obtain a list of all block names, simply execute SELECT block_name FROM ndbinfo.blocks. The blocks table is a ...
https://dev.mysql.com/mysql-cluster-ndbinfo-config-nodes.html
The config_nodes table shows nodes configured in an NDB Cluster config.ini file. For each node, the table displays a row containing the node ID, the type of node (management node, data node, or API node), and the name or IP address of the host on ...
https://dev.mysql.com/mysql-cluster-ndbinfo-dict-obj-types.html
Table 22.335 Columns of the dict_obj_types table Column Name Type Description type_id integer The type ID for this type type_name string The name of this type . The dict_obj_types table is a static table listing possible dictionary object types ...
https://dev.mysql.com/mysql-cluster-option-tables.html
The following table provides a list of the command-line options, server and status variables applicable within mysqld when it is running as an SQL node in an NDB Cluster. For a table showing all command-line options, server and status variables ...
https://dev.mysql.com/mysql-cluster-programs-ndb-index-stat.html
ndb_index_stat provides per-fragment statistical information about indexes on NDB tables. This includes cache version and age, number of index entries per partition, and memory consumption by indexes. Running ndb_index_stat with the --update option ...
