Sql Commands Ddl, Dql, Dml, Dcl And Tcl Commands
This is a straightforward way to define knowledge definition language usage in real SQL. It exhibits how DDL creates both the desk structure and constraints like major keys. This statement alters the “employees” table by including a foreign key constraint named “fk_department”. It specifies that the “department” column within the “employees” desk references the “name” […]
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