What is the clause we need to add in function body to return variable?
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How many types of tables are there?
What are sql ddl commands?
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 many rows will return from dual table?
What are data types in pl sql?
what is inline command?
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Define overloaded procedure?
When to use inner join and left join?
what is sql.
Do triggers have restrictions on the usage of large datatypes, such as long and long raw?
what is a materialized view? : Sql dba
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