how can we find the number of rows in a table using mysql? : Sql dba

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How do I filter in sql profiler?

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What is varray in pl sql?

0 Answers  

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HOW TO ADD PRIMARY KEY TO TABLE BY PL/SQL PROGRAM

3 Answers  

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what is External tables? explain with examples

2 Answers   TCS,

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How many functions are there in sql?

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explain normalization concept? : Sql dba

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Can we use distinct and group by together?

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Can we join tables without foreign key?

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Create table emp (id number(9), name varchar2(20),salary number(9,2)); The table has 100 records after table created.Now i nee to change id's Datatype is to be Varchar2(15). now Alter table emp modify(id varchar2(15),name varchar2(20), salary number(9,2)); Whether it will work or returns error? post answer with explanation.

13 Answers   Oracle, TCS,

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What is sql not null constraint?

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Does truncate remove indexes?

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