(PHP 4, PHP 5, PHP 7, PHP 8)
odbc_statistics — Retrieve statistics about a table
$odbc,$catalog,$schema,$table,$unique,$accuracyGet statistics about a table and its indexes.
odbcІдентифікатор з'єднання ODBC. Докладніше: odbc_connect().
catalogКаталог ('qualifier' мовою ODBC 2).
schemaСхема ('owner' мовою ODBC 2).
tableThe table name.
unique
The type of the index.
One of SQL_INDEX_UNIQUE or SQL_INDEX_ALL.
accuracy
One of SQL_ENSURE or SQL_QUICK.
The latter requests that the driver retrieve the CARDINALITY and
PAGES only if they are readily available from the server.
Returns an ODBC result object або false в разі помилки.
The result set has the following columns:
TABLE_CATTABLE_SCHEMTABLE_NAMENON_UNIQUEINDEX_QUALIFIERINDEX_NAMETYPEORDINAL_POSITIONCOLUMN_NAMEASC_OR_DESCCARDINALITYPAGESFILTER_CONDITION
The result set is ordered by NON_UNIQUE, TYPE, INDEX_QUALIFIER,
INDEX_NAME and ORDINAL_POSITION.
| Версія | Опис |
|---|---|
| 8.4.0 |
odbc expects an Odbc\Connection
instance now; previously, a resource was expected.
|
| 8.4.0 | This function returns an Odbc\Result instance now; previously, a resource was returned. |
Приклад #1 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
}
?>Поданий вище приклад виведе щось схоже на:
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] =>
)