PDF (US Ltr)
- 35.0Mb
PDF (A4)
- 35.1Mb
Man Pages (TGZ)
- 254.9Kb
Man Pages (Zip)
- 359.9Kb
Info (Gzip)
- 3.4Mb
Info (Zip)
- 3.4Mb
Search Results
https://dev.mysql.com/doc/refman/5.7/en/xa-restrictions.html
The implementation of internal XA requires that a storage engine support two-phase commit at the table handler level, and currently this is true only for InnoDB. This means that the same XA transaction can appear in the events_transactions_current ... XA transaction support is limited to the InnoDB storage ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations-exclusive-to-cluster.html
NDB Cluster has the following limitations or restrictions with regard to binary logging: NDB Cluster cannot produce a binary log for tables having BLOB columns but no primary key. The following are limitations specific to the NDB storage engine: ...
https://dev.mysql.com/doc/refman/5.7/en/view-syntax.html
To alter the definition of a view or drop a view, use ALTER VIEW (see Section 13.1.10, “ALTER VIEW Statement”), or DROP VIEW (see Section 13.1.32, “DROP VIEW Statement”). The CREATE VIEW statement creates a new view (see Section 13.1.21, ...
https://dev.mysql.com/doc/refman/5.7/en/charset-database.html
The CREATE DATABASE and ALTER DATABASE statements have optional clauses for specifying the database character set and collation: CREATE DATABASE db_name [[DEFAULT] CHARACTER SET charset_name] [[DEFAULT] COLLATE collation_name] ALTER DATABASE db_name ... Every database has a database character set and a database ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-file-format-downgrading.html
Each InnoDB tablespace file (with a name matching *.ibd) is tagged with the file format used to create its table and indexes. The way to modify the file format is to re-create the table and its indexes. For information about downgrading to a ...
https://dev.mysql.com/doc/refman/5.7/en/json-search-functions.html
row *************************** id: 1 select_type: SIMPLE table: jemp partitions: NULL type: range possible_keys: i key: i key_len: 5 ref: NULL rows: 2 filtered: 100.00 Extra: Using where 1 row in set, 1 warning (0.00 sec) mysql> SHOW WARNINGS\G ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-limitations-unsupported.html
If a prefix is used as part of an index specification in a statement such as CREATE TABLE, ALTER TABLE, or CREATE INDEX, the prefix is not created by NDB. A number of features supported by other storage engines are not supported for NDB tables. A ...Trying to use any of these features in NDB Cluster does not cause errors in or of itself; however, errors may occur in applications that expects the features to be supported or ...
https://dev.mysql.com/doc/refman/5.7/en/timestamp-lookups.html
In the preceding discussion, the data set stored in tstable happens to consist of distinct UTC values. If the index is not UNIQUE, it is possible for the table (and the index) to store multiple instances of a given UTC value. Temporal values are ...
https://dev.mysql.com/doc/refman/5.7/en/expired-password-handling.html
For example: ALTER USER 'myuser'@'localhost' PASSWORD EXPIRE; For each connection that uses an account with an expired password, the server either disconnects the client or restricts the client to “sandbox mode,” in which the server permits the ... MySQL provides password-expiration capability, which enables database administrators to require that users reset their ...
https://dev.mysql.com/doc/refman/5.7/en/char.html
The length of a CHAR column is fixed to the length that you declare when you create the table. See Section 8.4.7, “Limits on Table Column Count and Row Size”. The following table illustrates the differences between CHAR and VARCHAR by showing ...