Updating mysql table


28-Jan-2018 00:10

You can also change characteristics such as the storage engine used for the table or the table comment.makes the operation use the in-place technique for clauses and storage engines that support it, and fail with an error otherwise, thus avoiding a lengthy table copy if you try altering a table that uses a different storage engine than you expect.For information about the physical representation of a table, see Section 13.1.18.2, “Files Created by CREATE TABLE”.The original statement, including all specifications and table options are stored by My SQL when the table is created.Table options are used to optimize the behavior of the table.In most cases, you do not have to specify any of them.It incorporates the alteration into the copy, deletes the original table, and renames the new one.While operation begins are stalled until the new table is ready, then are automatically redirected to the new table without any failed updates.

Options that do not apply to a given storage engine may be accepted and remembered as part of the table definition.For example, you should investigate which applications are using the table.If the name of the table changes, so the application code that refers to the table name needs to be changed as well.PDF (US Ltr) - 37.9Mb PDF (A4) - 38.0Mb PDF (RPM) - 37.3Mb HTML Download (TGZ) - 10.3Mb HTML Download (Zip) - 10.3Mb HTML Download (RPM) - 8.9Mb Man Pages (TGZ) - 216.8Kb Man Pages (Zip) - 329.6Kb Info (Gzip) - 3.4Mb Info (Zip) - 3.4Mb My SQL Backup and Recovery My SQL Globalization My SQL Information Schema My SQL Installation Guide My SQL and Linux/Unix My SQL and OS X My SQL Partitioning My SQL Performance Schema My SQL Replication Using the My SQL Yum Repository My SQL Restrictions and Limitations Security in My SQL My SQL and Solaris Building My SQL from Source Starting and Stopping My SQL My SQL Tutorial My SQL and Windows My SQL NDB Cluster 7.5 storage engine.

An error occurs if the table exists, if there is no default database, or if the database does not exist.Tables are uniquely identified by their names and are comprised of columns and rows.



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