The constants below are defined by CUBRID PDO driver, and will only be available when the extension has been either compiled into PHP or dynamically loaded at runtime. In addition, these driver-specific constants should only be used if you are using PDO driver. Using driver-specific attributes with another driver may result in unexpected behaviour.
PDO::getAttribute() may be used to obtain the PDO_ATTR_DRIVER_NAME attribute to check the driver, if your code can run against multiple drivers.
| Constant | Type | Description |
| PDO::CUBRID_SCH_TABLE | integer | Get name and type of table in CUBRID. |
| PDO::CUBRID_SCH_VIEW | integer | Get name and type of view in CUBRID. |
| PDO::CUBRID_SCH_QUERY_SPEC | integer | Get the query definition of view. |
| PDO::CUBRID_SCH_ATTRIBUTE | integer | Get the attributes of table column. |
| PDO::CUBRID_SCH_TABLE_ATTRIBUTE | integer | Get the attributes of table. |
| PDO::CUBRID_SCH_TABLE_METHOD | integer | Get the instance method. The instance method is a method called by a class instance. It is used more often than the class method because most operations are executed in the instance. |
| PDO::CUBRID_SCH_METHOD_FILE | integer | Get the information of the file where the method of the table is defined. |
| PDO::CUBRID_SCH_SUPER_TABLE | integer | Get the name and type of table which table inherites attributes from. |
| PDO::CUBRID_SCH_SUB_TABLE | integer | Get the name and type of table which inherites attributes from this table. |
| PDO::CUBRID_SCH_CONSTRAINT | integer | Get the table constraints. |
| PDO::CUBRID_SCH_TRIGGER | integer | Get the table triggers. |
| PDO::CUBRID_SCH_TABLE_PRIVILEGE | integer | Get the privilege information of table. |
| PDO::CUBRID_SCH_COL_PRIVILEGE | integer | Get the privilege information of column. |
| PDO::CUBRID_SCH_DIRECT_SUPER_TABLE | integer | Get the direct super table of table. |
| PDO::CUBRID_SCH_DIRECT_PRIMARY_KEY | integer | Get the table primary key. |
| PDO::CUBRID_SCH_IMPORTED_KEYS | integer | Get imported keys of table. |
| PDO::CUBRID_SCH_EXPORTED_KEYS | integer | Get exported keys of table. |
| PDO::CUBRID_SCH_CROSS_REFERENCE | integer | Get reference relationship of tow tables. |