database design
No Need For a SQL Tutorial Or to Learn SQL
Many proprietary database systems come with a report writer but are too difficult to use. They need a knowledge of SQL or they need an expensive expert to prepare the report. Sometimes there is no report writer available at all. Here is a solution.
Scalar subqueries tips for Oracle 9i
Scalar subqueries are a powerful enhancement to Oracle9i SQL. They allow for quick formulation of extremely complex SQL statements. Oracle’s introduction of scalar subquery support is another example of the company’s commitment to keeping pace with the evolution of the SQL language.
MySQL and BLOBs
One of MySQL's strengths is its use of Binary Large Object (BLOB) columns. These columns store unprocessed binary data, typically files, that can be retrieved and manipulated like the other common datatypes. The difficulty comes in accessing the BLOB column in VB. Prior to ADO 2.5, the only way to move data in and out of a MySQL BLOB column using Visual Basic was to use the appendchunk and getchunk methods. With ADO 2.5, the stream object has been added, greatly simplifying the process of working with MySQL BLOBs. In this article, I will focus entirely on using the stream object.
A Look at SQL Server 2008 Change Tracking
Before SQL Server 2008, you had to build a custom solution if you wanted to keep track of the changes to the data in your tables. SQL Server 2008 has a new offering called Change Tracking that keeps track of each DML event type and the keys of the row that was affected.
Corporate Repository For PhP and MySQL
To more effective track coded and tested techniques employed in PhP and MySQL solutions a corporate repository was developed to track, house and maintain this varied array of code snippets.
| Related News: |
