what is the difference between char and varchar data types? : Sql dba

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What does where 1 1 mean in sql?

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Does pdo prevent sql injection?

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what is meant by databases

4 Answers  

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Does mysql support pl sql?

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What is the best sql course?

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how view used for security purposes?

3 Answers   Glam India,

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table having two columns - entity,zone enity zone pen east pen west pen north pen south pen east pencil east pencil east pencil west I want the output as : entity east west north south pen 2 1 1 1 pencil 2 1 0 0

2 Answers  

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What does “select count(*) from tab” result?

15 Answers   IBM, Student, Wipro,

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What is update query?

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I have done oracle 10g. I need a project knowledge. So if u please send a project how it should be done,Or you can send email link. I will be very grateful to u.

1 Answers  

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table - new_no old_no 2345 1234 3456 2345 5678 4567 output sud be -new_no 1234 2345 3456 4567 5678

2 Answers  

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