columns in database called

Http://www.cnblogs.com/gaizai/archive/2010/01/11/1644358.html   Before I start, I want to talk about several concepts. Overwrite Query] When an index contains all the columns referenced by a query, it is usually called "Overwrite query ". [Index

In fact, when creating an object in the database, the Administrator must also name it. Some experienced database administrators will also be careful when naming them. It must be loud and representative of specific application scenarios. Sometimes

Description of pseudo columns and pseudo columns in the SQL Server database. Pseudo columns in SQL Server In the afternoon, someone in the QQ group was discussing (non-clustered) index storage. For clustered index tables, the non-clustered index

Pseudo-Columns in SQL ServerQQ Group in the afternoon to see someone in the discussion (nonclustered) index storage,Say, for a clustered index table, the nonclustered index stores the index key value + the clustered index key value; For a

Multiple columns of a single database field in php are displayed. This article describes how to display multiple columns of a single database field and multiple columns in php. It can also be called single-field paging and horizontal output,

1. List View Controls in the dialog box The List View Control of the grid report type is often used when writing some database programs. This control is not much different from other controls for the dialog box program. Set the view attribute to the

Multiple columns of a single database Field in php This article mainly introduces the multi-Column Display of a single database Field in php and the display of branch columns. It can also be called Single-field paging and horizontal output. For more

Created by Ken Stevens. Last edited by Steve Shaw, 1 ago. For your project we needed to encrypt a number of columns in the database for security purposes and tried out a tool called Jasypt and were able to meet we encryption requirements in under a

Before opening a text, let's start with a few concepts. "Overwrite Query" When an index contains all the columns that a query references, it is often referred to as an "overwrite query." "Index Overlay" If the returned data column is contained

4. What are the categories of computers? What are their characteristics?Traditionally, there are three types: Large hosts, minicomputers, and minicomputers. Large hosts are generally high-performance parallel processing systems with large storage