(PECL ibm_db2 >= 1.0.0)
db2_procedure_columns — Returns a result set listing stored procedure parameters
$connection,$qualifier,$schema,$procedure,$parameterReturns a result set listing the parameters for one or more stored procedures.
connectionA 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.
      
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 nullif
        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 nullwhere 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), ornull(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 nullfor 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 nullfor
         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 nullvalues and 'NO' means that the parameter does not
         accept or returnnullvalues. | 
