Popisresource pg_query ( string query )
resource pg_query ( resource connection, string query )
pg_query() executes the
on the specified database
If an error occurs, and FALSE is returned, details of the error can be retrieved using the pg_last_error() function if the connection is valid.
connectioncan be omitted, it is not recommended, since it can be the cause of hard to find bugs in scripts.
Poznámka: This function used to be called pg_exec(). pg_exec() is still available for compatibility reasons, but users are encouraged to use the newer name.
The SQL statement or statements to be executed. When multiple statements are passed to the function, they are automatically executed as one transaction, unless there are explicit BEGIN/COMMIT commands included in the query string. However, using multiple transactions in one function call is not recommended.
Příklad 2. Using pg_query() with multiple statements