The SQLite database is a wildly successful and ubiquitous software package that is mostly unknown to the larger IT community. Designed and coded by Dr. Richard Hipp, the third major revision of SQLite ...

Oracle SQL*Plus has a very useful subparameter to the column parameter called NEW_VALUE. The NEW_VALUE directive allows you to store data retrieved from an Oracle table as a variable inside the ...

Read this chapter while sitting at your computer and try out the examples shown. Before beginning, make sure you have access to the sample tables described. To begin using SQL*Plus, you must first ...

Oracle's namesake database management system has a data type called a CLOB, or Character Large OBject. Though the standard character data type, called CHAR, has a size limit of 2,000 characters, you ...

The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can take several seconds; with the ...