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https://dev.mysql.com/doc/refman/8.4/en/innochecksum.html
This tool reads an InnoDB tablespace file, calculates the checksum for each page, compares the calculated checksum to the stored checksum, and reports mismatches, which indicate damaged pages. It was originally developed to speed up verifying the ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-fulltext-index.html
Full-text indexes are created on text-based columns (CHAR, VARCHAR, or TEXT columns) to speed up queries and DML operations on data contained within those columns. A full-text index is defined as part of a CREATE TABLE statement or added to an ...
https://dev.mysql.com/doc/refman/8.4/en/json-attribute-functions.html
The functions in this section return attributes of JSON values. An error occurs if the argument is not a valid JSON document. An empty array, empty object, or scalar value has depth 1. A nonempty array containing only elements of depth 1 or ...
https://dev.mysql.com/doc/refman/8.4/en/myisamchk-other-options.html
myisamchk supports the following options for actions other than table checks and repairs: --analyze, -a Command-Line Format --analyze Analyze the distribution of key values. This improves join performance by enabling the join optimizer to better ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-error-messages.html
The error_messages table provides information about The error_messages table contains the following columns: error_code Numeric error code error_description Description of error error_status Error status code error_classification Error ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-config.html
This tool extracts current configuration information for data nodes, SQL nodes, and API nodes from one of a number of sources: an NDB Cluster management node, or its config.ini or my.cnf file. By default, the management node is the source for the ...
https://dev.mysql.com/doc/refman/8.4/en/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 ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-mgm.html
The ndb_mgm management client process is actually not needed to run the cluster. Its value lies in providing a set of commands for checking the cluster's status, starting backups, and performing other administrative functions. The management client ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndb-select-all.html
ndb_select_all prints all rows from an NDB table to stdout. Usage ndb_select_all -c connection_string tbl_name -d db_name [> file_name] Options that can be used with ndb_select_all are shown in the following table. --connect-retries Command-Line ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-programs-ndbinfo-select-all.html
ndbinfo_select_all is a client program that selects all rows and columns from one or more tables in the ndbinfo database Not all ndbinfo tables available in the mysql client can be read by this program (see later in this section). In addition, ...