Data base questions Continue....

Cursors
SQL statements are good for set at a time operations. So it is good for for handling a group of data. But there are scenarios when you want to update a row depending upon a some specific criteria, like loop through the rows and update the row. This time we are using cursors
There are different steps to create cursors
1.Declare
2.Open
3.Fetch
4.Operation
4.Close and deallocate.

Difference between delete and truncate statements?
Delete is data manipulation language
Truncate is data definition language
Truncate Cannot be rollnacked while delete can be
Can not use trancate on a table referenced be foreign key
Delete table sysntax logs the delete, truncate table does not log any information but it logs information about deallocation of data page of table.
Delete can have criteria while truncate can not
Trucate reset the identity of the table, while delete do not reset the identity.

Comments

SRT THE REAL HERO

Lets Start with something quite interesting. So I am selecting SRT ( As an Indian too much dedicated towards cricket). For me cricket means Sachin . When ever Sachin is in crease i never looks the score. Like to see Sachin plays at least 35 to 40 overs. Usually by that time he will reach his century. My passion is to study the statistics of Sachin. You know Sachin looks almost 72 games to hit his first century. After 17 years now ( more than 350 matches he played after) he had 46 ODI century, what an amazing batsman. Till 1992 -1993 if you looks his ODI average its in late twenties. But now its after that 350 matches now more than 45 . I know one thing Sachin will play till his wish. I like to see him score more than 100 odi century( Sachin personally enjoys this). Its not a barrier , but a guy got that much passion towards game can achieve it. I always ideals Sachin. While i am working and have difficult situations, I always think how Sachin played 137 against Australia ( dessert ...

CV Preparation

An old saying, - First Impression is the best impression. When we are applying for the jobs, chances of getting interview depend mainly on CV . Each location has its own CV format. While applying for an UK based job you need to sent a standard UK format CV (optional cases some organisations do not accepts CV ). 1 Header with Name, phone number and email address (avoid address) 2 Career Conspectus – Describe about your experience, what technology you familiar with, what domain you got experience etc 3. Technical Skills – Mention all the technical skills on this section (In good format, if necessary use tables) 4. Certifications - Mention about the Certifications passed. 5. Employment Chronicle- Mention about the professional experience (Most recent first).Include Project name/Client name , a brief summary of project, your responsibility (Means role in the project), and the environment(Which technologies used) which the projects works 6....

Emergence and Creative Confidence

I started my career on 1st of September 2008 as a software developer at Manchester. Some people in my personal life might know about it. I like to say, that day as the day I found an aura in my life, transformation from the worst possible situation into a new beginning in a matter of 1 hour. The week before, I got an interview confirmation from that company and I was not at all excited about it because I know it is going to be the final interview in UK if I am unsuccessful. I was in that mental state because I was not successful for past 12 such occurrences and not expecting anything different. This shows I was not a brilliant person but had a strong passion and hardworking nature to achieve success. I passed my masters on Sep 2007 and after that, I decided to work only in software development, and lots of people including my parents told this as a worst possible decision. To be precise, they have no issues in choosing software development, but on my adamant decision only software de...

AFAIK

Chat

Search This Blog