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https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-memory-per-fragment.html
Every row having one or more variable-sized, one or more dynamic columns (or both) has a variable-sized part. Each row in an NDB table has a fixed-size part, consisting of a row header, and one or more fixed-size columns. The total free space ...
https://dev.mysql.com/doc/c-api/8.4/en/c-api-data-structures.html
The definitions apply primarily for columns of result sets such as those produced by SELECT statements. For such parameters, some of the structure members have a meaning different from the meaning for column values. Tip To view the MYSQL_FIELD ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-get.html
(See Section 5.5, “MySQL Cluster Manager Configuration Commands”, for a definition of the term “attribute” as it applies in the MySQL Cluster Manager.) The output includes the following columns: Name: This column contains the name of the ...
https://dev.mysql.com/doc/refman/8.4/en/myisam-storage-engine.html
See Section 6.5.3, “mysqlcheck — A Table Maintenance Program”, Section 6.6.4, “myisamchk — MyISAM Table-Maintenance Utility”, and Section 6.6.6, “myisampack — Generate Compressed, Read-Only MyISAM Tables”. Also, the code in the ...
https://dev.mysql.com/doc/connector-odbc/en/connector-odbc-usagenotes-apptips-microsoft-access.html
Include a TIMESTAMP column in all tables that you want to be able to update. For maximum portability, do not use a length specification in the column declaration (which is unsupported within MySQL in versions earlier than 4.1). If you are using ...
https://dev.mysql.com/doc/refman/8.4/en/merge-storage-engine.html
“Identical” means that all tables have identical column data types and index information. You cannot merge MyISAM tables in which the columns are listed in a different order, do not have exactly the same data types in corresponding columns, or ... The MERGE storage engine, also known as the MRG_MyISAM engine, is a collection of identical MyISAM tables that can be used as ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-lakehouse-limitations-all.html
The following options for the CREATE TABLE statement: AUTOEXTEND_SIZE AVG_ROW_LENGTH CHECKSUM COMPRESS CONNECTION DATADIR DELAY_KEY_WRITE ENCRYPT INDEXDIR INSERT_METHOD KEY_BLOCK_SIZE MAX_ROWS MIN_ROWS PACK_KEYS PASSWORD ROW_FORMAT STATS_AUTO_RECALC ... MySQL HeatWave Lakehouse has the following limitations for all file ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-tables-table.html
The INNODB_TABLES table has these columns: TABLE_ID An identifier for the InnoDB table. The number reported includes three hidden columns that are created by InnoDB (DB_ROW_ID, DB_TRX_ID, and DB_ROLL_PTR). INSTANT_COLS The number of columns that ...
https://dev.mysql.com/doc/refman/8.4/en/information-schema-table-reference.html
The following table summarizes all available INFORMATION_SCHEMA tables. For greater detail, see the individual table descriptions. Table 28.1 INFORMATION_SCHEMA Tables Table Name Description Deprecated ADMINISTRABLE_ROLE_AUTHORIZATIONS Grantable ...
https://dev.mysql.com/doc/refman/8.4/en/mysql-cluster-ndbinfo-cluster-locks.html
The transaction ID (transid column) is the identifier generated by the NDB API for the transaction requesting or holding the current lock. The mode column shows the lock mode; this is always one of S (indicating a shared lock) or X (an exclusive ...