Retrieve statistics about a table_脚本学堂

说明

resource odbc_statistics ( resource $connection_id , string $qualifier , string $owner , string $table_name , int $unique , int $accuracy )

Get statistics about a table and its indexes.

参数

connection_id: The ODBC connection identifier, see odbc_connect() for details.
qualifier: The qualifier.
owner: The owner.
table_name: The table name.
unique: The unique attribute.
accuracy: The accuracy.

返回值

Returns an ODBC result identifier or FALSE on failure.

The result set has the following columns:

TABLE_QUALIFIER
TABLE_OWNER
TABLE_NAME
NON_UNIQUE
INDEX_QUALIFIER
INDEX_NAME
TYPE
SEQ_IN_INDEX
COLUMN_NAME
COLLATION
CARDINALITY
PAGES
FILTER_CONDITION

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