difference between table level constraint and column level and advantages of table level constraint

4 Answers   Doyensys,

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Why is theta join required?

0 Answers  

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SELECT ROUND(TRUNC(MOD(1600,10),-1),2) FROM dual;

10 Answers  

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What are all types of user defined functions?

0 Answers  

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Explian rowid, rownum?

0 Answers  

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i have a table with column sno with 30 records. i want to update this column by item by item in asp.net. i wantto enter new values into that from 1 to 30 how is it possible with backend c#

1 Answers  

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Is a secondary key the same as a foreign key?

0 Answers  

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what command is used to create a table by copying the structure of another table including constraints ?

6 Answers   CMC, eicc,

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How to order siblings in oracle hierarchy queries?

0 Answers  

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What is execution plan in sql?

0 Answers  

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What is the difference between subquery and correlated query?

0 Answers  

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What is the difference between python and sql?

0 Answers  

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