Table 12.18 Information FunctionsNameDescriptionBENCHMARK()Repeatedly execute an expressionCHARSET()Return the character set of the argu ...
Table 12.18 Information Functions
| Name | Description |
|---|
BENCHMARK() | Repeatedly execute an expression |
CHARSET() | Return the character set of the argument |
COERCIBILITY() | Return the collation coercibility value of the string argument |
COLLATION() | Return the collation of the string argument |
CONNECTION_ID() | Return the connection ID (thread ID) for the connection |
CURRENT_USER(), CURRENT_USER | The authenticated user name and host name |
DATABASE() | Return the default (current) database name |
FOUND_ROWS() | For a SELECT with a LIMIT clause, the number of rows that would be returned were there no LIMIT clause |
LAST_INSERT_ID() | Value of the AUTOINCREMENT column for the last INSERT |
ROW_COUNT() | The number of rows updated |
SCHEMA() | Synonym for DATABASE() |
SESSION_USER() | Synonym for USER() |
SYSTEM_USER() | Synonym for USER() |
USER() | The user name and host name provided by the client |
VERSION() | Return a string that indicates the MySQL server version |
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原标题：MySQL Information Functions
关键词：MYSQL
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