jet/wiki/Statements.md

Following statements are supported:

• SELECT
• INSERT
• UPDATE
• DELETE
• LOCK

This list might be extended with feature Jet releases.

There is a common set of action that can be performed for each statement type:

• Sql() (query string, args []interface{}, err error) - retrieves parametrized sql query with list of arguments
• DebugSql() (query string, err error) - retrieves debug query where every parametrized placeholder is replaced with its argument.
• Query(db execution.DB, destination interface{}) error - executes statements over database connection db and stores row result in destination.
• QueryContext(db execution.DB, context context.Context, destination interface{}) error - executes statement with a context over database connection db and stores row result in destination.
• Exec(db execution.DB) (sql.Result, error) - executes statement over db connection without returning any rows.
• ExecContext(db execution.DB, context context.Context) (sql.Result, error) - executes statement with context over db connection without returning any rows.

Database connection can be of any type that implements following interface:

type DB interface {
	Exec(query string, args ...interface{}) (sql.Result, error)
	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
	Query(query string, args ...interface{}) (*sql.Rows, error)
	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
}

These include but are not limited to:

• sql.DB
• sql.Tx
• sql.Conn