本篇参考书籍《 数据库原理及应用–SQL Server 2012》 目录 一、整形数据 (1) int类型: (2) smallint类型: (3) tinyint类型: (4) bit类型 二、浮点型数据 (1) real类型 (2) float类型: 三、字符串类型 (1) char[n];固定长度 (2) nchar(n) 类型: (3) varchar[n]类型:可变长度 (4) text:...
GUID就是一个数字分配器,保证一个程序生成的值和其他程序生成的值不冲突,是128位值;在SQL Server中对应的数据类型就是uniqueidentifier,该类型允许的操作只包括=、<>、<、>、<=、>=以及是否为null的检测IS NULL、IS NOT NULL;该数据类型定义的列上不允许使用IDENTITY;通过NEWID()函数生成新的GUID值,该函数生成...
Data typeSQL Server 数据类型说明 SRVBIGBINARY binary binary 数据类型,长度为 0 至 8000 个字节。 SRVBIGCHAR char character 数据类型,长度为 0 至 8000 个字节。 SRVBIGVARBINARY varbinary 长度可变的 binary 数据类型,长度为 0 至 8000 个字节。 SRVBIGVARCHAR va...
使用类的DataType一个静态成员,例如Int。这实际上将返回对象的DataType实例。 DataType对象具有定义数据类型的几个属性。 例如,该SqlDataType属性指定 SQL Server 数据类型。 表示 SQL Server 数据类型的常量值列在SqlDataType枚举中。 这是指诸如varchar、nchar、currency、integer、float和datetime这样的数据类型。
SQL SERVER – Fix: Error : 402 The data types ntext and varchar are incompatible in the equal to operator Some errors are very simple to understand but the solution of the same is not easy to figure out. Here is one of the similar errors where it clearly suggests where the problem is ...
This article provides a summary of the different data types available in the SQL Server Database Engine.
SQL ServerDate and TimeWith the old datetime data type, SQL Server® users did not have the ability to work with date and time information separately. Four of the new data types—date, time, datetime2, and datetimeoffset—change that, simplifying working with date and time data and ...
SQL Server具有地理数据类型,可用于存储地理空间数据。 What are the case sensitivity differences between PostgreSQL and SQL Server? Compare index types in PostgreSQL vs. MSSQL 中文:大小写敏感问题比较 PostgreSQL区分大小写来进行字符串比较。LOWER()函数允许用户将字符串转换为全小写以进行比较(还有类似的UPPER...
Int, TinyInt, SmallInt & BigInt Money & SmallMoney TheDecimalor Numeric data types SQL server represents the numbers that contain the integer part & fractional part separated by a decimal point. The numbers include both negative & positive numbers. Both Decimal & Numeric data types are the sa...
(Categories of SQL Server data types) SQL Server supports the following data type’s categories: SQL Server支持以下数据类型的类别: Exact numeric: bit, tinyint, smallint, int, bigint, decimal, numeric, money and smallmoney 精确数字 :位,tinyint,smallint,int,bigint,十进制,数字,货币和smallmone...