https://support.huaweicloud.com/intl/es-us/usermanual-ddm/ddm-08-0016.html
Online DDL_SQL Syntax_User Guide_Distributed Database Middleware-Huawei Cloud
DDM supports online DDL operations, including adding, deleting, or modifying fields, setting default values, and modifying character sets and table...
online ddlsql syntaxuser guidedistributed database
https://dev.mysql.com/doc/refman/9.7/en/innodb-online-ddl-limitations.html
MySQL :: MySQL 9.7 Reference Manual :: 17.12.8 Online DDL Limitations
reference manualonline ddlmysql
https://mariadb.com/docs/server/server-usage/storage-engines/innodb/innodb-online-ddl/innodb-online-ddl-operations-with-the-nocopy-alter-algorithm
InnoDB Online DDL Operations with the NOCOPY Alter Algorithm | Server | MariaDB Documentation
Understand the NOCOPY algorithm, which avoids rebuilding the clustered index for certain operations like adding secondary indexes, significantly reducing I/O.
online ddl
https://www.percona.com/blog/tag/online-ddl/
Online DDL Archives - Percona
online ddlarchivespercona
https://jira.mariadb.org/browse/MDEV-22618
[MDEV-22618] Assertion `!dict_index_is_online_ddl(lock-index) || lock-index-is_primary()'...
online ddlmdevassertiondictindex
https://techcommunity.microsoft.com/discussions/exchange_general/basic-user-query-in-exchange-online-on-way-to-create-a-ddl-its-not-getting-what-/4120148/replies/4120349
Basic user query in Exchange online (on way to create a DDL) "it's not getting what I want" |...
questionI have been trying to construct an additional DDL that won't work in the "canned queries".Basically my logic wascompany=RRR, State=NY OR...
https://mariadb.org/monitoring-progress-and-temporal-memory-usage-of-online-ddl-in-innodb/
MariaDB 10.1.1: Monitoring progress and temporal memory usage of Online DDL in InnoDB - MariaDB.org
Oct 23, 2014 - Introduction Online DDL is a new feature in MariaDB 10.0. Online DDL is processed through below 4 tasks in sequence. InnoDB::ha_prepare_inplace_alter_table(..)...