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Other 2021-09-05 11:00:03
what is relational database management system
Relational Database Management System (RDBMS) means that tables in database are related using primary/foreign key relationship. Used to store, modify and retrieve data in the database. • How are they related? Primary Key (unique and not NULL) Foreig... Add solution -
SQL 2021-09-04 11:56:02
set column to not null mysql
ALTER TABLE Person MODIFY P_Id INT(11) NOT NULL; Add solution -
SQL 2021-09-03 13:34:02
merge-using-cte-source
CREATE TABLE #src ( a int NOT NULL, b numeric(28, 8) NOT NULL, PRIMARY KEY (a) ); INSERT INTO #src VALUES (1, 1234.00), (3, 1340.00); CREATE TABLE #tgt ( ... Add solution