Basic and Advance databases programming :: Database Developer Job Interview Questions and Answers

Database Developer Frequently Asked Questions in various Database Developer job interviews by interviewer. The set of questions are here to ensures that you offer a perfect answer posed to you. So get preparation for your new job interview

1 Please explain what is Database Testing?
2 Explain me what are the different DDL commands in SQL?
3 Tell us what is a temp table?
4 Tell me what is a Composite PRIMARY KEY?
5 Do you know SQL Data Types?
6 Tell us what is the difference between Delete, Truncate and Drop command?
7 Tell me what are aggregate functions in SQL?
8 Tell us what do you mean by table and field in SQL?
9 Tell me what do you mean by ROWID ?
10 Can you explain me what is a Database?
11 Tell me what are the popular Database Management Systems in the IT Industry?
12 Tell me what are the different DCL commands in SQL?
13 Tell us what is a Subquery?
14 Explain me what are SQL constraints?
15 Tell us what is the difference between UNIQUE and PRIMARY KEY constraints?
16 Tell us what is a DEFAULT constraint?
17 Tell me which TCP/IP port does SQL Server run?
18 Tell us what is the difference between Having and Where clause?
19 Tell me what are the three ways that Dynamic SQL can be executed?
20 Explain me what do you mean by data integrity?
21 Tell me what is an Index?
22 Do you know what is the difference between GUI Testing and Database Testing?
23 Tell us what is RDBMS?
24 Tell us what is a View?
25 Tell us what are the different types of joins?
26 Tell me can a table contain multiple FOREIGN KEY’s?
27 Tell me what is a CHECK constraint?
28 Explain me the SELECT INTO statement?
29 Tell me when are we going to use truncate and delete?
30 Can you list the different type of joins?
31 Tell me what is BCP? When is it used?
32 Tell me what is the largest value that can be stored in a BYTE data field?
33 Tell us what is a FOREIGN KEY?
34 Tell us what are the different TCL commands in SQL?
35 Do you know what is a Table in a Database?
36 Do you know what is a Join?
37 Tell us what is a Unique constraint?
38 Tell me what is Normalization?
39 Tell us what are Constraints?
40 Tell us what is a Field in a Database?
41 Tell me what is SQL NOT NULL constraint?
42 Tell me what are the possible values that can be stored in a BOOLEAN data field?
43 Explain me how are transactions used?
44 Tell me what is a Record in a Database?
45 Explain me what is the difference between Union and Union All command?
46 Tell me why DBAs don’t like cursors?
47 Tell us what are the different types of SQL commands?
48 Explain me what is a Primary Key?
49 Tell me referential integrity and where it can be enforced?
50 Tell us what is a Trigger?
51 Tell us what is the difference between an inner and outer join?
52 Tell us what is SQL?
53 Tell me what are Operators available in SQL?
54 Explain me what is a column in a Table?
55 Tell me what are DMVs?
56 Please explain what are string functions in SQL?
57 What are the steps needed to Create the scheduled job?
58 Do you know what are the constraints available in SQL?
59 Please explain what is DBMS?
60 Tell me how to avoid duplicate records in a query?
61 Explain me what is Stored procedure?
62 Tell us what are the different DML commands in SQL?
63 Can you tell me the ACID properties and explain?
64 Tell us what is an Index?
65 Tell me can a table contain multiple PRIMARY KEY’s?
66 Explain me what is the difference between Rename and Alias?
67 Tell me what is the difference between NULL value, Zero, and Blank space?
68 Tell me what are the advantages of Views?
69 Tell us how to Test for NULL Values?
70 Please explain what is a NULL value?

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