Are subqueries better than joins?

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What are commit, rollback, and savepoint?

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what is transaction? : Sql dba

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25.67,-1 Trunc = 20 Round= 30 HOW????

2 Answers   Karrox,

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What is a table?

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What are stored procedures used for?

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What is foreign key in sql with example?

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Is join and inner join the same?

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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??????

8 Answers   rsystems,

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What is localdb mssqllocaldb?

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What is record data type?

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How do you create a unique index?

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