Answer / rajesh

To establish a parent child relationship between two tables
and to prevent invalid data entry into the table , we make
set of rules on a column is called Referential integrity.

Answer / mallikarjuna.anumala

A rule defined on a column (or set of columns) in one table
that allows the insert or update of a row only if the value
for the column or set of columns (the dependent value)
matches a value in a column of a related table (the
referenced value). It also specifies the type of data
manipulation allowed on referenced data and the action to
be performed on dependent data as a result of any action on
referenced data.

Answer / pravin kadam

A rule defined on a column (or set of columns) in one table
that allows the insert or update of a row only if the value
for the column or set of columns (the dependent value)
matches a value in a column of a related table (the
referenced value). It also specifies the type of data
manipulation allowed on referenced data and the action to
be performed on dependent data as a result of any action on
referenced data.

What is the difference between sql, mysql and sql server?

0 Answers  

---

Explain cursor types?

0 Answers  

---

How to run sql commands in sql*plus?

0 Answers  

---

What is not null in sql?

0 Answers  

---

Which software is used for pl sql programming?

0 Answers  

---

What are the advantages and disadvantages, compared to the standard SQL and SQL*plus ?

2 Answers  

---

Is ms sql traffic encrypted?

0 Answers  

---

Explain spool.

0 Answers  

---

What is sharding in sql?

0 Answers  

---

What is join view in sql?

0 Answers  

---

What is a recursive stored procedure?

0 Answers  

---

How you improve the performance of sql*loader? : aql loader

0 Answers  

---