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odbc_specialcolumns

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(PHP 4, PHP 5, PHP 7)

odbc_specialcolumns — Retrieves special columns

Description

odbc_specialcolumns ( resource $connection_id , int $type , string $qualifier , string $table , int $scope , int $nullable ) : resource

Retrieves either the optimal set of columns that uniquely identifies a row in the table, or columns that are automatically updated when any value in the row is updated by a transaction.

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Parameters

connection_id

The ODBC connection identifier, see odbc_connect() for details.

type
When the type argument is SQL_BEST_ROWID, odbc_specialcolumns() returns the column or columns that uniquely identify each row in the table. When the type argument is SQL_ROWVER, odbc_specialcolumns() returns the column or columns in the specified table, if any, that are automatically updated by the data source when any value in the row is updated by any transaction.
qualifier

The qualifier.

table

The table.

scope

The scope, which orders the result set.

nullable

The nullable option.

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Return Values

Returns an ODBC result identifier or FALSE on failure.

The result set has the following columns:

  • SCOPE
  • COLUMN_NAME
  • DATA_TYPE
  • TYPE_NAME
  • PRECISION
  • LENGTH
  • SCALE
  • PSEUDO_COLUMN

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Document created the 30/01/2003, last modified the 26/10/2018
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References

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