Databases Interview Questions
Questions Answers Views Company eMail

How internally data stores in MyISAM and INNODB table types?

Zensar,

2370

why not null constraint showing its constraint type as 'c'

1 4304

how can get like this result table A col1 col2 --- ----- a A b B C C .. .. .. ... .. ... wants result like for a single column col1 ------ a,b,c,........n of data and another is col1 ------- A B C D ........ a b b d ........

TCS,

2 4563

without using count(*) and rownum how can we count total record in a table

AC, HP,

5 9113

What is the basic difference between a sql and stored procedure ?

L&T,

2 6197

Which is the best place to learn hadoop?

1 4963

write sub query for eliminating duplicate rows using analytical function?

Metric Stream,

3 12404

what is switch column,colums cost in oracle?

Metric Stream,

3374

what are the tunnig tables you used for tuning a query and tell me some of coloumns in that tuning tables?

Metric Stream,

1 8904

maximum database size of mysql database

2 4854

we have a package and we have grants to execute that package inside of that we have table, here we don't have privileges to this table? whether this package will execute or not?

TCS,

3 8225

you are sorting a table using "order by"(descending) clause of a column which contains a null value...whether that row containing null value will come first or last in the output??

BirlaSoft,

2 5388

display records from 5 to 9 using rowid or rownum

Agile Software,

5 15137

when i declare date data type in sql ,i inserted the date 22-10-2012,but my result is in different date 1894-07-11 any one pls help me what's wrong in my query Create table orders(od_id int,od_name varchar(10),od_date date) insert into orders values(1,'sai',22-10-2012) and any one pls suggest what i can learn for 3 years real time experenice in sql because i am looking for database field

1 2964

determine the minimum salary of the employee and his details who join on the same date

3 5392


Un-Answered Questions { Databases }

What is the difference between sql and t sql?

754


Mention what is oracle real application clusters?

1


Explain trigger and trigger types?

774


How to Improve the performencs of SQL Server 2005 exclude stored Procedure and Indexes?

1811


What is oracle log switch?

417


what are the acid properties in dbms?

767


What is tkprof and how is it used?

429


How to calculate the difference between two dates?

753


What are data files?

842


What is difference between database and file?

657


‘Order by’ is not allowed in a view how can you sort information from a view?

843


what are all different types of collation sensitivity? : Sql dba

755


What are the High-Availability solutions in SQL Server and differentiate them briefly?

953


london school of science and technology has a software development unit,known as lsst solutions,which is responsible for developing and implementing software throughout the collegejames tristan keeps a record of all student details in the college including student id,name,and start date and phone number.There are many courses offered by LSST. For example MBA, MSc, BSc, BABS, DF, English etc. Each course id identified by course id, description, duration. Each course has many semesters. Each semester takes place during a particular term. Semester details and term details are required to be stored in the database. Each course has many subjects and same subject may be offered in many courses. For each subject many details such as Subject code, name, result and attendance are required to be stored. Every subject has mainly two assessments; one assignment and one exam. Assignment is worth of 30% and exam 70% respectively. You have been appointed as a database designer. Your job is to provide ERD with all possible entities and relationships. Note: Feel free to make necessary assumptions 3: Assignment Tasks. 1. Create an ERD for the above problem 2. Translate the ERD to Relational Data model (RDM) 3. Implement the RDM by creating the tables 4. Populate the database with your own data. 5. SQL Queries for the following tasks a. List all student details in each course along with course details b. Count and display number of students in each course. c. List student name, course name, assessment description, marks for all students.

2228


Explain bind cache?

722