What is the difference between a query and a report?
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How does an execution block start and end in pl sql?
how to enter binary numbers in sql statements? : Sql dba
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.
How do you go back in sql?
what are pl/sql collections?
4 Answers JPMorgan Chase, Oracle,
Show the two pl/sql cursor exceptions.
How do you write a complex sql query?
What is embedded sql with example?
What packages are available to pl/sql developers?
Explain isolation levels. : Transact sql
Is sql database free?
what is the difference between nested subquery and correlated subquery?
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