MySQL Manual
9 MySQL APIs
- 9.1 MySQL C API
- 9.1.3 C API Function Descriptions
- 9.1.3.1
mysql_affected_rows() - 9.1.3.2
mysql_change_user() - 9.1.3.3
mysql_character_set_name() - 9.1.3.4
mysql_close() - 9.1.3.5
mysql_connect() - 9.1.3.6
mysql_create_db() - 9.1.3.7
mysql_data_seek() - 9.1.3.8
mysql_debug() - 9.1.3.9
mysql_drop_db() - 9.1.3.10
mysql_dump_debug_info() - 9.1.3.11
mysql_eof() - 9.1.3.12
mysql_errno() - 9.1.3.13
mysql_error() - 9.1.3.14
mysql_escape_string() - 9.1.3.15
mysql_fetch_field() - 9.1.3.16
mysql_fetch_fields() - 9.1.3.17
mysql_fetch_field_direct() - 9.1.3.18
mysql_fetch_lengths() - 9.1.3.19
mysql_fetch_row() - 9.1.3.20
mysql_field_count() - 9.1.3.21
mysql_field_seek() - 9.1.3.22
mysql_field_tell() - 9.1.3.23
mysql_free_result() - 9.1.3.24
mysql_get_client_info() - 9.1.3.25
mysql_get_server_version() - 9.1.3.26
mysql_get_host_info() - 9.1.3.27
mysql_get_proto_info() - 9.1.3.28
mysql_get_server_info() - 9.1.3.29
mysql_info() - 9.1.3.30
mysql_init() - 9.1.3.31
mysql_insert_id() - 9.1.3.32
mysql_kill() - 9.1.3.33
mysql_list_dbs() - 9.1.3.34
mysql_list_fields() - 9.1.3.35
mysql_list_processes() - 9.1.3.36
mysql_list_tables() - 9.1.3.37
mysql_num_fields() - 9.1.3.38
mysql_num_rows() - 9.1.3.39
mysql_options() - 9.1.3.40
mysql_ping() - 9.1.3.41
mysql_query() - 9.1.3.42
mysql_real_connect() - 9.1.3.43
mysql_real_escape_string() - 9.1.3.44
mysql_real_query() - 9.1.3.45
mysql_reload() - 9.1.3.46
mysql_row_seek() - 9.1.3.47
mysql_row_tell() - 9.1.3.48
mysql_select_db() - 9.1.3.49
mysql_sqlstate() - 9.1.3.50
mysql_shutdown() - 9.1.3.51
mysql_stat() - 9.1.3.52
mysql_store_result() - 9.1.3.53
mysql_thread_id() - 9.1.3.54
mysql_use_result() - 9.1.3.55
mysql_commit() - 9.1.3.56
mysql_rollback() - 9.1.3.57
mysql_autocommit() - 9.1.3.58
mysql_more_results() - 9.1.3.59
mysql_next_result()
- 9.1.3.1
9.1.3.13 mysql_error()
char *mysql_error(MYSQL *mysql)
Description
For the connection specified by mysql, mysql_error() returns
a null-terminated string containing
the error message for the most recently invoked API function that can succeed
or fail. An empty string ("") is returned if no error occurred.
This means the following two tests are equivalent:
if(mysql_errno(&mysql))
{
// an error occurred
}
if(mysql_error(&mysql)[0] != '\0')
{
// an error occurred
}
The language of the client error messages may be changed by recompiling the MySQL client library. Currently you can choose error messages in several different languages. See section 4.6.2 Non-English Error Messages.
Return Values
A null-terminated character string that describes the error. An empty string if no error occurred.
Errors
None.
