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MySQL 8.0 C API Developer Guide
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7.54 mysql_query()

int
mysql_query(MYSQL *mysql,
            const char *stmt_str)

Description

Executes the SQL statement pointed to by the null-terminated string stmt_str. Normally, the string must consist of a single SQL statement without a terminating semicolon (;) or \g. If multiple-statement execution has been enabled, the string can contain several statements separated by semicolons. See Chapter 23, C API Multiple Statement Execution Support.

mysql_query() cannot be used for statements that contain binary data; you must use mysql_real_query() instead. (Binary data may contain the \0 character, which mysql_query() interprets as the end of the statement string.)

If you want to know whether the statement returns a result set, you can use mysql_field_count() to check for this. See Section 7.23, “mysql_field_count()”.

Return Values

Zero for success. Nonzero if an error occurred.

Errors