What is a primary key, and how is it different from a unique key?

3 Answers  

---

after tell procedure whole code he asked can i write the same way in a function

3 Answers  

---

What are the data types allowed in a table?

3 Answers  

---

Which is faster count (*) or count 1?

0 Answers  

---

Can you join a table to itself?

0 Answers  

---

explain access control lists. : Sql dba

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.

1 Answers   CGI,

---

What is synchronized subquery?

0 Answers  

---

Do foreign keys improve performance?

0 Answers  

---

How much does sql certification cost?

0 Answers  

---

Can a table contain multiple primary key’s?

0 Answers  

---

what are the t string functions available in tsql? : Transact sql

0 Answers  

---