Controls transaction mode in the absence of a BEGIN TRANSACTION statement.
ON, OFF
OFF for Open Client and JDBC connections
ON
Controls the Transact-SQL transaction mode. In unchained mode (CHAINED = OFF) each statement is committed individually unless an explicit BEGIN TRANSACTION statement is executed to start a transaction. In chained mode (CHAINED = ON) a transaction is implicitly started before any data retrieval or modification statement. For Adaptive Server Enterprise, the default setting is OFF.
