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what is a foreign key ? : Sql dba

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More SQL PLSQL Interview Questions

what are the different tables present in mysql, which type of table is generated when we are creating a table in the following syntax: create table employee (eno int(2),ename varchar(10)) ? : Sql dba

0 Answers  

When do we create bitmap indexes

2 Answers   CTS,

Is truncate ddl or dml?

0 Answers  

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,

Can I learn sql in a week?

0 Answers  

Is grant a ddl statement?

0 Answers  

a. Can you delete data from a View. b. If Yes, can you delete it if there are multiple tables c. If No, can you delete if there is single source table which is joining.

4 Answers   CGI, IBM,

What is the difference between partitioning and sharding?

0 Answers  

who introduced sql?

0 Answers  

What is oracle pl sql developer?

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Can you upgrade sql express to full sql?

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What is implicit cursor in pl sql?

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