Skip to main content

SQL Types

SQL Types

The SQL Types mobile app for Android is now available. It is a quick reference for SQL Professionals and Database Developers. 

SQL Types provides easy access to various database vendor supported data type documentation.

Check it out on the Google Play store.


 Current supported database vendors:
  • PostgreSQL
  • Oracle
  • SQL Server
  • MySQL
  • SQLite


Comments

Post a Comment

Popular posts from this blog

Momentum transfer

This image shows different possible paths that result in a collision. Intuitively, we know which way the object should continue along the wall. Determining this mathematically is a bit more challenging. The object could go in one of two directions. That is, it could follow the wall one way or the other. But why should it prefer one direction over another? We need a generalized rule that applies for every wall and every angle of approach. The rule is that momentum is transferred along the path of least resistance . Least resistance is the difference between the wall angle and the angle of approach that is less than 90 degrees. This raises the issue that a line's angle is determined by its direction. This means that the end point we start with determines the angle of the line. See the line below. Is it a 45 degree line, or a 225 degree line? It depends on which point you start from. But, for a generalized rule of momentum transfer, the answer shouldn't matter. ...
Post a Comment
Read more

Moving with Trigonometry

These are some thoughts on Trigonometry that I wanted to write down, and someone, somewhere may want to read. But probably not. If you're not into it, turn back immediately. In a top-down view on a two dimensional plane, you can face any direction and move in a forward direction by moving on the x-axis by the cosine of your rotation and moving on the y-axis by the sine of your rotation. This seems to require a physical orientation in the world, but this physical limitation is only on the surface. We can take one step back and use these abilities in more subtle ways. Imagine a side view on a plane in which you can move left and right, and jump up and fall back down to the ground. Let us first think of the left and right movement in terms of trigonometry. Facing right means 0 degrees and so we can move on x by the cosine of our rotation. Facing left is 180 degrees, and we move on x by the cosine of our rotation. Let's maintain a logical rotation factor called xf . When sta...
Post a Comment
Read more