Answer / prasanthi

Check Constraint:

The CHECK constraint is used to limit the value range that
can be placed in a column.

not null constraint:

if we give not null constraint to any column it will not
accept null values.

Unique Conatraint:

Unique key is similar to primary key but it accepts one
null value.
For o column Setting Unique key+Not NULL we can make
Primary Key.

Answer / chaitu

These are contraints

Define indexes?

0 Answers  

---

what are three different authentications to connect linked servers?

1 Answers   CitiGroup,

---

Explain the use of containers in ssis?

0 Answers  

---

How to get the definition of a view out of the sql server?

0 Answers  

---

What is normalization of database?

0 Answers  

---

What is indexing?

0 Answers   AOL,

---

What is mscorsvw.exe - process - microsoft .net framework ngen?

0 Answers  

---

How to create a view with data from multiple tables?

0 Answers  

---

Explain magic tables in sql server?

0 Answers  

---

How does stuff differ from the replace function?

0 Answers  

---

Explain different types of collation sensitivity?

0 Answers  

---

How to copy data from one table to another table?

0 Answers  

---