Is there a pl/sql pragma similar to deterministic, but for the scope of one single sql select?
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How to recompile a already made trigger?
Can we write create command in the plsql block?if possible how?
What are conditional predicates?
What is the unique index?
How do you take the union of two tables in sql?
What will you get by the cursor attribute sql%notfound?
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.
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Explain uses of cursor.
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What are the parameter modes supported by pl/sql?
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