Techniques that allow data to be changed without affecting the applications that process it. There are two kinds of data independence. The first type is data independence for data, which is ...

Developers should be aware of the hazards of using nonstandard SQL commands such as those found in Oracle, Microsoft, and MySQL systems. Instead, you should use ANSI SQL, which is a ...

In this paper, the score test statistic for testing independence in R x C contingency tables with missing data is proposed. Under the null hypothesis of independence, the statistic has an approximate ...