PDF (US Ltr)
- 35.1Mb
PDF (A4)
- 35.2Mb
Man Pages (TGZ)
- 256.4Kb
Man Pages (Zip)
- 361.2Kb
Info (Gzip)
- 3.4Mb
Info (Zip)
- 3.4Mb
Search Results
https://dev.mysql.com/doc/refman/5.7/en/show-master-status.html
row *************************** File: source-bin.000002 Position: 1307 Binlog_Do_DB: test Binlog_Ignore_DB: manual, mysql Executed_Gtid_Set: 3E11FA47-71CA-11E1-9E33-C80AA9429562:1-5 1 row in set (0.00 sec) When global transaction IDs are in use, ...
https://dev.mysql.com/doc/refman/5.7/en/fetching-spatial-data.html
Geometry values stored in a table can be fetched in internal format. Fetching spatial data in internal format: Fetching geometry values using internal format can be useful in table-to-table transfers: CREATE TABLE geom2 (g GEOMETRY) SELECT g FROM ...
https://dev.mysql.com/doc/refman/5.7/en/optimize-numeric.html
For unique IDs or other values that can be represented as either strings or numbers, prefer numeric columns to string columns. Since large numeric values can be stored in fewer bytes than the corresponding strings, it is faster and takes less ...
https://dev.mysql.com/doc/refman/5.7/en/silent-column-changes.html
In some cases, MySQL silently changes column specifications from those given in a CREATE TABLE or ALTER TABLE statement. These might be changes to a data type, to attributes associated with a data type, or to an index specification. All changes are ...
https://dev.mysql.com/doc/refman/5.7/en/temporary-table-problems.html
Temporary tables created with CREATE TEMPORARY TABLE have the following limitations: TEMPORARY tables are supported only by the InnoDB, MEMORY, MyISAM, and MERGE storage engines. Use ALTER TABLE instead: ALTER TABLE old_name RENAME new_name; You ...
https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf32.html
utf32 takes twice as much space as ucs2 and more space than utf16, but utf32 has the same advantage as ucs2 that it is predictable for storage: The required number of bytes for utf32 equals the number of characters times 4. The utf32 character set ...
https://dev.mysql.com/doc/refman/5.7/en/drop-user.html
Attempts to access such objects may produce an error if they execute in definer security context. An error occurs if you try to drop an account that does not exist. If the IF EXISTS clause is given, the statement produces a warning for each named ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-performance-thread_concurrency.html
In situations where it is helpful to minimize context switching between threads, InnoDB can use a number of techniques to limit the number of concurrently executing operating system threads (and thus the number of requests that are processed at any ...Scalability improvements in MySQL 5.5 and up reduce the need to limit the number of concurrently executing threads inside ...
https://dev.mysql.com/doc/refman/5.7/en/faqs-information-schema.html
Where can I find documentation for the MySQL INFORMATION_SCHEMA database? A.7.2. Where can I find the ANSI SQL 2003 specification for INFORMATION_SCHEMA? A.7.4. What is the difference between the Oracle Data Dictionary and MySQL INFORMATION_SCHEMA? ...
https://dev.mysql.com/doc/refman/5.7/en/function-loading.html
Loadable functions, as the name implies, must be loaded into the server before they can be used. MySQL supports automatic function loading during server startup and manual loading thereafter. While a loadable function is loaded, information about ...