A lock that is a flag in the table header that effectively rejects certain types of Teradata SQL access statements. An acquisition lock allows all concurrent DML access and the DROP DDL statement, and rejects DDL statements other than DROP.
A lock that is a flag in the table header that effectively rejects certain types of Teradata SQL access statements. An acquisition lock allows all concurrent DML access and the DROP DDL statement, and rejects DDL statements other than DROP.