MySQL :: MySQL 8.4 C API Developer Guide :: 5.4.40 mysql_info() (original) (raw)

5.4.40 mysql_info()

const char *
mysql_info(MYSQL *mysql)

Description

Retrieves a string providing information about the most recently executed statement, but only for the statements listed here. For other statements,mysql_info() returnsNULL. The format of the string varies depending on the type of statement, as described here. The numbers are illustrative only; the string contains values appropriate for the statement.

• INSERT INTO ... SELECT ...
  String format: Records: 100 Duplicates: 0 Warnings: 0
• INSERT INTO ... VALUES (...),(...),(...)...
  String format: Records: 3 Duplicates: 0 Warnings: 0
• LOAD DATA
  String format: Records: 1 Deleted: 0 Skipped: 0 Warnings: 0
• ALTER TABLE
  String format: Records: 3 Duplicates: 0 Warnings: 0
• UPDATE
  String format: Rows matched: 40 Changed: 40 Warnings: 0

mysql_info() returns a non-NULL value forINSERT ... VALUES only for the multiple-row form of the statement (that is, only if multiple value lists are specified).

Return Values

A character string representing additional information about the most recently executed statement. NULL if no information is available for the statement.