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odbc_statistics

odbc_statistics

Retrieve statistics about a table

 **odbc_statistics** Odbc\Connection $odbc  $catalog string $schema string $table int $unique int $accuracy

Get statistics about a table and its indexes.

odbc``catalogodbc.parameter.catalog

schemaodbc.parameter.schema

tableThe table name.

unique The type of the index. One of or . SQL_INDEX_UNIQUE``SQL_INDEX_ALL

accuracy One of or . The latter requests that the driver retrieve the and only if they are readily available from the server. SQL_ENSURE``SQL_QUICK``CARDINALITY``PAGES

odbc.result.object-return-falseforfailure

The result set has the following columns:

odbc.result.driver-specific

  • TABLE_CAT

  • TABLE_SCHEM

  • TABLE_NAME

  • NON_UNIQUE

  • INDEX_QUALIFIER

  • INDEX_NAME

  • TYPE

  • ORDINAL_POSITION

  • COLUMN_NAME

  • ASC_OR_DESC

  • CARDINALITY

  • PAGES

  • FILTER_CONDITION

    The result set is ordered by , , , and . NON_UNIQUE``TYPE``INDEX_QUALIFIER``INDEX_NAME``ORDINAL_POSITION

Voorbeeld: List Statistics of a Table

<?php
$conn = odbc_connect($dsn, $user, $pass);
$statistics = odbc_statistics($conn, 'TutorialDB', 'dbo', 'TEST', SQL_INDEX_UNIQUE, SQL_QUICK);
while (($row = odbc_fetch_array($statistics))) {
    print_r($row);
    break; // further rows omitted for brevity
}
?>

Array
(
    [TABLE_CAT] => TutorialDB
    [TABLE_SCHEM] => dbo
    [TABLE_NAME] => TEST
    [NON_UNIQUE] =>
    [INDEX_QUALIFIER] =>
    [INDEX_NAME] =>
    [TYPE] => 0
    [ORDINAL_POSITION] =>
    [COLUMN_NAME] =>
    [ASC_OR_DESC] =>
    [CARDINALITY] => 15
    [PAGES] => 3
    [FILTER_CONDITION] =>
)

odbc_tables

Vorige ← odbc_specialcolumns Volgende odbc_tableprivileges →

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