db2_procedure_columns
说明
resource db2_procedure_columns ( resource connection, string qualifier, string schema, string procedure, string parameter )Returns a result set listing the parameters for one or more stored procedures.
参数
- connection
A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.
- qualifier
A qualifier for DB2 databases running on OS/390 or z/OS servers. For other databases, pass NULL or an empty string.
- schema
The schema which contains the procedures. This parameter accepts a search pattern containing _ and % as wildcards.
- procedure
The name of the procedure. This parameter accepts a search pattern containing _ and % as wildcards.
- parameter
The name of the parameter. This parameter accepts a search pattern containing _ and % as wildcards. If this parameter is NULL, all parameters for the specified stored procedures are returned.
返回值
Returns a statement resource with a result set containing rows describing the parameters for the stored procedures matching the specified parameters. The rows are composed of the following columns:
| Column name | Description |
|---|---|
| PROCEDURE_CAT | The catalog that contains the procedure. The value is NULL if this table does not have catalogs. |
| PROCEDURE_SCHEM | Name of the schema that contains the stored procedure. |
| PROCEDURE_NAME | Name of the procedure. |
| COLUMN_NAME | Name of the parameter. |
| COLUMN_TYPE |
An integer value representing the type of the parameter: |
| DATA_TYPE | The SQL data type for the parameter represented as an integer value. |
| TYPE_NAME | A string representing the data type for the parameter. |
| COLUMN_SIZE | An integer value representing the size of the parameter. |
| BUFFER_LENGTH | Maximum number of bytes necessary to store data for this parameter. |
| DECIMAL_DIGITS | The scale of the parameter, or NULL where scale is not applicable. |
| NUM_PREC_RADIX | An integer value of either 10 (representing an exact numeric data type), 2 (representing an approximate numeric data type), or NULL (representing a data type for which radix is not applicable). |
| NULLABLE | An integer value representing whether the parameter is nullable or not. |
| REMARKS | Description of the parameter. |
| COLUMN_DEF | Default value for the parameter. |
| SQL_DATA_TYPE | An integer value representing the size of the parameter. |
| SQL_DATETIME_SUB | Returns an integer value representing a datetime subtype code, or NULL for SQL data types to which this does not apply. |
| CHAR_OCTET_LENGTH | Maximum length in octets for a character data type parameter, which matches COLUMN_SIZE for single-byte character set data, or NULL for non-character data types. |
| ORDINAL_POSITION | The 1-indexed position of the parameter in the CALL statement. |
| IS_NULLABLE | A string value where 'YES' means that the parameter accepts or returns NULL values and 'NO' means that the parameter does not accept or return NULL values. |
参见
| db2_column_privileges() |
| db2_columns() |
| db2_foreign_keys() |
| db2_primary_keys() |
| db2_procedures() |
| db2_special_columns() |
| db2_statistics() |
| db2_table_privileges() |
| db2_tables() |