odbc_statistics
resource$odbc,
string|null$catalog,
string$schema,
string$table,
int$unique,
int$accuracy
): resource|false
Get statistics about a table and its indexes.
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).
- table
-
The 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.
Return Values
Returns an ODBC result identifier or false on failure.
The result set has the following columns:
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 NON_UNIQUE, TYPE, INDEX_QUALIFIER, INDEX_NAME and ORDINAL_POSITION.