Backing up a database, no matter how large or small, should form part of your database solution.Even if a backup is only taken once a week, or even once a month, it is crucial that you sit down and decide which backup strategy is right for you. Much of this decision lies in the hands of the product owners for your company, since they must weigh the risk they’re willing to take against the cost of minimizing that risk.

SQL Loader loads data from external files into tables of an Oracle database. A typical SQL Loader session takes as input a control file, which controls the behavior of SQL*Loader, and one or more data files. The output of SQL Loader is an Oracle database (where the data is loaded), a log file, a bad file, and potentially, a discard file. The tables to be loaded must already exist in the database. SQL*Loader never creates tables. It loads existing tables that either already contain data or are empty. The following privileges are required for a load: * You must have INSERT privileges on the table to be loaded. * You must have DELETE privileges on the table to be loaded, when using the REPLACE or TRUNCATE option to empty old data from the table before loading the new data in its place.

{mos_sb_discuss:29} Introduction As the attacks in which hackers use become more and more sophisticated, and the programs in which they attack become increasingly complex, encryption is becoming the last line of defense in database management system (DBMS) security.

{mos_sb_discuss:29} Many SQL Server programmers are confused about the use of subqueries, especially nested subqueries (i.e., a subquery that contains a subquery). Let's start with the basics.

{mos_sb_discuss:29} A common web application vulnerability is SQL injection, an attack very similar to XSS. The difference is that an SQL injection vulnerability exists whenever you use un-escaped data in an SQL query. (If these names were more consistent, XSS would probably be called HTML injection.)

{mos_sb_discuss:29}  You can use performance monitoring tools to monitor report server performance to evaluate server activity, observe trends, diagnose system bottlenecks, and gather data that can help you determine whether the current system configuration is adequate.

This article explores the power and simplicity of sqlite3, starting with common commands and triggers. It then covers the attach statement with the union operation, introduced in a way that allows multiple tables, in separate databases, to be combined as one virtual table, without the overhead of copying or moving data.

{mos_sb_discuss:29} Constructing a database query is a perfectly straightforward process. It typically proceeds something like this (for demonstration purposes, we'll assume that you have a database of wines, where one of the fields is the grape variety):

{mos_sb_discuss:29}  Databases are also considered containers. They hold the objects that make up your server's purpose in life. Tables, views, indexes, and stored procedures are all objects that reside in your database. You can, and often will, have multiple user-defined databases residing on your server. These databases are where the production information and code reside. Other databases are installed on your server to give it the intelligence it needs to function.