What are dml commands?
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What is a schema in sql?
Q1.all the depts which has more then 10 empls? Q2.all the dept which does not have any emply? Q3 all the emp which does not have any dept? Q4 get all the emply detais with the dept details it dept is exit otherwise any emp details? Q5 how to debugg the dynamic sql and packages?
How many triggers can be applied to a table?
What are tables and fields?
What is the use of cursor ? how cursor allocate context area for executing the sql statement?
What is normalization sql?
Are subqueries better than joins?
What is mutating table?
how can you see all indexes defined for a table? : Sql dba
What is primary key secondary key alternate key candidate key?
What is denormalization in a database?
What operators deal with null?
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