how many tables will create when we create table, what are they? : Sql dba

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What is query optimization in sql?

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i have a word ***********hello********world******. I require a o/p **********hello world**********, Need to delete the middle stars.

3 Answers  

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Can a commit statement be executed as part of a trigger?

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When are we going to use truncate and delete?

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In a distributed database system, can we execute two queries simultaneously?

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What is foreign key and example?

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there are 2 variables called x and y ,x contains 1,2 and y contains 3,4 we have to swap the values from x to y and y to x with out using dummy variables and it can be done only by using a single statement ? how?

12 Answers   Oracle,

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How to combine two stored procedures in sql?

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how to remove records from table? no name 1 a 2 b 1 a 2 b 3 c

8 Answers   Oracle,

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what is a database transaction? : Sql dba

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How does a covering index work?

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