db2_columns

db2_columns

(PECL)

db2_columns --  Returns a result set listing the columns and associated metadata for a table

Description

resource db2_columns ( resource connection [, string qualifier [, string schema [, string table-name [, string column-name]]]] )

Returns a result set listing the columns and associated metadata for a table.

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.

Return Values

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 nameDescription
TABLE_CATName of the catalog. The value is NULL if this table does not have catalogs.
TABLE_SCHEMName of the schema.
TABLE_NAMEName of the table or view.
COLUMN_NAMEName of the column.
DATA_TYPEThe SQL data type for the column represented as an integer value.
TYPE_NAMEA string representing the data type for the column.
COLUMN_SIZEAn 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).
NULLABLEAn integer value representing whether the column is nullable or not.
REMARKSDescription of the column.
COLUMN_DEFDefault value for the column.
SQL_DATA_TYPEAn 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_POSITIONThe 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.

© Copyright 2003-2014 www.php-editors.com. The ultimate PHP Editor and PHP IDE site.