ObjectiveThe full name of SQL is the Structured Query Language (structured Query Language), which is the most commonly used language in a relational database. Not only can SQL manage the data in the database, but it can also manage the relational
SQL has many built-in functions that can be used for counting and computation.Syntax of the functionThe syntax for the built-in SQL function is:SELECT function (column) from tableTypes of functionsIn SQL, there are several kinds of basic function
When you create a table, you must assign a data type to each column in the table. This section describes some of the most common data types in SQL Server. Even if you create a custom data type, it must be based on a standard SQL Server data type.
After years of controversy, Microsoft finally cut the date-time data type, adding 4 new date-time data types in one breath in the new version of SQL Server 2008, including:
Date: A pure date data type.
Time: A pure temporal data type.
After years of controversy, Microsoft finally cut the date-time data type, adding 4 new date-time data types in one breath in the new version of SQL Server 2008, including:
Date: A pure date data type.
Time: A pure temporal data type.
Original: SQL Server 2008 Spatial Data Application Series II: the Spatial Index FoundationIn the previous blog post, we learned some basic knowledge about geographic information, and also learned about the spatial reference system, including the
Original: SQL Server 2008 Spatial Data Application series five: Using spatial data types in data tablestips, the prerequisites for reading this blog post are as follows:1. This sample is based on Microsoft SQL Server R2 Commissioning.2. Experience
In SQL Server 2008, the relational database engine is relatively new, and this article will focus on the new features that application developers and database administrators are more concerned about.
New features related to developers:
Change Data
Transferred from: Leo_wlcnblogsSQL Server functions explained by some common DLLsIf your SQL Server is installed in the C drive, the following path is the storage path of the corresponding SQL Server version of the common DLLSQL2005C:\Program
Directory
1. Programming with the Transact-SQL language
1.1. Data Definition Language DDL
1.2. Data manipulation language DML
1.3. Data Control Language DCL
1.4.transact-sql Language Basics
2.
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