What is data control language (dcl)?
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What is %rowtype in pl sql?
is mysql query is case sensitive? : Sql dba
What is the basic form of sql query?
What will you get by the cursor attribute sql%notfound?
What pl/sql package consists of?
What is the use of & in pl sql?
IN A TABLE HAVE ONE COLUMN PRIMARY KEY..IT WILL NOT ALLOWS NULL VALUES AND DUPLICATE VALUES..INSTEAD OF PRIMARY KEY WHY CANT WE USE UNIQUE AND NOT NULL.THESE TWO ALSO DOESNT ACCEPT NULL VALUES IN NOT NULL AND UNIQUE DOESNT ACCEPT DUPLICATE VALUES? SO WHAT IS THE DIFEERENCE BETWEEN(UNIQUE,NOT NULL) AND PRIMARY KEY??????
What are the modes of parameters that can be passed to a procedure ?
what is index? : Sql dba
A table was given with 3 columns like Manager id,Manager Name and Employee name. Question was to create hierarchy.
Write an sql query to select all records from the table?
write a query to delete similar records in different tables with same structure
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