MariaDB Connector/C Types and definitions
Contents
MariaDB Connector/C provides the following types and definitions.
Enumeration types
enum mysql_option
enum mysql_option is used as a parameter in mysql_optionsv() and mysql_get_optionsv() API functions. For a list of integral constants and their meanings please check the documentation of mysql_get_optionsv().
enum enum_mysql_timestamp_type
enum enum_mysql_timestamp_type is used in MYSQL_TIME structure and indicates the type. It has the following constants:
- MYSQL_TIMESTAMP_NONE
- MYSQL_TIMESTAMP_ERROR
- MYSQL_TIMESTAMP_DATE
- MYSQL_TIMESTAMP_DATETIME
- MYSQL_TIMESTAMP_TIME
enum mysql_set_option
enum mysql_set_option is used as a parameter in mysql_set_server_option() and has the following constants:
- MYSQL_OPTIONS_MULTI_STATEMENTS_ON
- MYSQL_OPTIONS_MULTI_STATEMENTS_OFF
enum enum_field_types
enum field_types describes the different field types used by MariaDB ] and has the following constants:
- MYSQL_TYPE_DECIMAL
- MYSQL_TYPE_TINY
- MYSQL_TYPE_SHORT
- MYSQL_TYPE_LONG
- MYSQL_TYPE_FLOAT
- MYSQL_TYPE_DOUBLE
- MYSQL_TYPE_NULL
- MYSQL_TYPE_TIMESTAMP
- MYSQL_TYPE_LONGLONG
- MYSQL_TYPE_INT24
- MYSQL_TYPE_DATE
- MYSQL_TYPE_TIME
- MYSQL_TYPE_DATETIME
- MYSQL_TYPE_YEAR
- MYSQL_TYPE_NEWDATE
- MYSQL_TYPE_VARCHAR
- MYSQL_TYPE_BIT
- MYSQL_TYPE_TIMESTAMP2
- MYSQL_TYPE_DATETIME2
- MYSQL_TYPE_TIME2
- MYSQL_TYPE_JSON
- MYSQL_TYPE_NEWDECIMAL
- MYSQL_TYPE_ENUM
- MYSQL_TYPE_SET
- MYSQL_TYPE_TINY_BLOB
- MYSQL_TYPE_MEDIUM_BLOB
- MYSQL_TYPE_LONG_BLOB
- MYSQL_TYPE_BLOB
- MYSQL_TYPE_VAR_STRING
- MYSQL_TYPE_STRING
- MYSQL_TYPE_GEOMETRY
enum mysql_enum_shutdown_level
enum mysql_enum_shutdown_level is used as a parameter in mysql_server_shutdown() and has the following constants:
- SHUTDOWN_DEFAULT
- KILL_QUERY
- KILL_CONNECTION
Definitions
Field flags
The following field flags are used in MYSQL_FIELD structure.
| Flag | Value | Description |
| NOT_NULL_FLAG | 1 | Field can't be NULL |
| PRI_KEY_FLAG | 2 | Field is part of primary key |
| UNIQUE_KEY_FLAG | 4 | Field is part of unique key |
| MULTIPLE_KEY_FLAG | 8 | Field is part of a key |
| BLOB_FLAG | 16 | Field is a blob |
| UNSIGNED_FLAG | 32 | Field is unsigned integer |
| ZEROFILL_FLAG | 64 | Field is zero filled |
| BINARY_FLAG | 128 | Field is binary |
| ENUM_FLAG | 256 | Field is enum |
| AUTO_INCREMENT_FLAG | 512 | Field is an autoincrement field |
| TIMESTAMP_FLAG | 1024 | Field is a timestamp |
| SET_FLAG | 2048 | Field is a set |
| NO_DEFAULT_VALUE_FLAG | 4096 | Field has no default value |
| ON_UPDATE_NOW_FLAG | 8192 | A field is update it will get the current time value (NOW()) |
| NUM_FLAG | 32768 | Field is numeric |
