Generally TOP clause is used to perform SELECT on top n results. This feature of TOP is extended in SQL 2005 so that we can also use expression apart from int, bigint and percent to perform query and also extended to be used in UPDATE and DELETE statements.
In SQL, keys are used to maintain referential integrity among relations. Put simply, this means keys allow tables to reference each other, and each reference will be "correct" every time.
Whenever I want to show actual code, such as something that comes directly from the screen of my mysql client program, I switch to a Courier font, which looks different from the regular text font.
In this post, we are going to explain how you can list all CONSTRAINT of database or table in SQl Server. When you are working on database sometimes you need to check or get the CONSTRAINT on database or table. Using below given query we can get the CONSTRAINT of table or database quickly.
Many of us do not realize that MySQL's Timestamp is not the timestamp which PHP date() understands. In fact if you try to use MySQL timestamp directly in php date() function then you will get totally wrong dates. There is a simple way to use MySQL timestamp data in php.
The MySQL developers have released milestone 2 of MySQL 5.5, on the path to a general release in mid-2010. The new milestone release incorporates semi-synchronous replication in MySQL 5.5 based on patches to InnoDB developed by Google.
Whenever I want to show actual code, such as something that comes directly from the screen of my mysql client program, I switch to a Courier font, which looks different from the regular text font.
Whenever I want to show actual code, such as something that comes directly from the screen of my mysql client program, I switch to a Courier font, which looks different from the regular text font.
MySQL user who wants to know "what's new" in version 5. The short answer is "stored procedures, triggers, views, and information schema". The long answer is the MySQL 5.0 New Features series, and this book is the third in that series.
To delete duplicates from a MySQL database table I normally copy the duplicate data first to a temporary table and then use the copied id's to delete from the original table.
Reporting Services is a Web service-based solution for designing, deploying, and managing flexible, dynamic Web-based reports, as well as traditional paper reports. These reports can contain information from virtually any data source.
PostgreSQL performance optimization is a widely discussed issue on the most forums. Although PostgreSQL is shipped with a solid default configuration aimed to fit most setups, it requires fair amount of performance optimization to offer the best.