db2_columns Returns a result set listing the columns and associated metadata for a table &reftitle.description; resourcedb2_columns resourceconnection stringqualifier stringschema stringtable-name stringcolumn-name Returns a result set listing the columns and associated metadata for a table. &reftitle.parameters; 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 tables. To match all schemas, pass '%'. table-name The name of the table or view. To match all tables in the database, pass &null; or an empty string. column-name The name of the column. To match all columns in the table, pass &null; or an empty string. &reftitle.returnvalues; Returns a statement resource with a result set containing rows describing the columns matching the specified parameters. The rows are composed of the following columns: Column name Description TABLE_CAT Name of the catalog. The value is NULL if this table does not have catalogs. TABLE_SCHEM Name of the schema. TABLE_NAME Name of the table or view. COLUMN_NAME Name of the column. DATA_TYPE The SQL data type for the column represented as an integer value. TYPE_NAME A string representing the data type for the column. COLUMN_SIZE An integer value representing the size of the column. BUFFER_LENGTH Maximum number of bytes necessary to store data from this column. DECIMAL_DIGITS The scale of the column, 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 column is nullable or not. REMARKS Description of the column. COLUMN_DEF Default value for the column. SQL_DATA_TYPE An integer value representing the size of the column. 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 column, 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 column in the table. IS_NULLABLE A string value where 'YES' means that the column is nullable and 'NO' means that the column is not nullable. &reftitle.seealso; db2_column_privileges db2_foreign_keys db2_primary_keys db2_procedure_columns db2_procedures db2_special_columns db2_statistics db2_table_privileges db2_tables