odbc_columns
(PHP 4, PHP 5, PHP 7, PHP 8)
odbc_columns — Lists the column names in specified tables
Description
resource
$odbc
,?string
$catalog
= null
,?string
$schema
= null
,?string
$table
= null
,?string
$column
= null
): resource|false
Lists all columns in the requested range.
Parameters
-
odbc
-
The ODBC connection identifier, see odbc_connect() for details.
-
catalog
-
The catalog ('qualifier' in ODBC 2 parlance).
-
schema
-
The schema ('owner' in ODBC 2 parlance). This parameter accepts the following search patterns:
%
to match zero or more characters, and_
to match a single character. -
table
-
The table name. This parameter accepts the following search patterns:
%
to match zero or more characters, and_
to match a single character. -
column
-
The column name. This parameter accepts the following search patterns:
%
to match zero or more characters, and_
to match a single character.
Return Values
Returns an ODBC result identifier or false
on failure.
The result set has the following columns:
TABLE_CAT
TABLE_SCHEM
TABLE_NAME
COLUMN_NAME
DATA_TYPE
TYPE_NAME
COLUMN_SIZE
BUFFER_LENGTH
DECIMAL_DIGITS
NUM_PREC_RADIX
NULLABLE
REMARKS
COLUMN_DEF
SQL_DATA_TYPE
SQL_DATETIME_SUB
CHAR_OCTET_LENGTH
ORDINAL_POSITION
IS_NULLABLE
The result set is ordered by TABLE_CAT
, TABLE_SCHEM
,
TABLE_NAME
and ORDINAL_POSITION
.
Changelog
Version | Description |
---|---|
8.0.0 |
schema , table and column
are now nullable.
|
Examples
Example #1 List Columns of a Table
<?php
$conn = odbc_connect($dsn, $user, $pass);
$columns = odbc_columns($conn, 'TutorialDB', 'dbo', 'test', '%');
while (($row = odbc_fetch_array($columns))) {
print_r($row);
break; // further rows omitted for brevity
}
?>
The above example will output something similar to:
Array ( [TABLE_CAT] => TutorialDB [TABLE_SCHEM] => dbo [TABLE_NAME] => TEST [COLUMN_NAME] => id [DATA_TYPE] => 4 [TYPE_NAME] => int [COLUMN_SIZE] => 10 [BUFFER_LENGTH] => 4 [DECIMAL_DIGITS] => 0 [NUM_PREC_RADIX] => 10 [NULLABLE] => 0 [REMARKS] => [COLUMN_DEF] => [SQL_DATA_TYPE] => 4 [SQL_DATETIME_SUB] => [CHAR_OCTET_LENGTH] => [ORDINAL_POSITION] => 1 [IS_NULLABLE] => NO )
See Also
- odbc_columnprivileges() - Lists columns and associated privileges for the given table
- odbc_procedurecolumns() - Retrieve information about parameters to procedures