sql server create table primary key

To create a PRIMARY KEY constraint on the "ID" column when the table is already created, use the following SQL...

sql server create table primary key

To create a PRIMARY KEY constraint on the "ID" column when the table is already created, use the following SQL: MySQL / SQL Server / Oracle / MS Access:. , PRIMARY KEY 條件約束內所定義的所有資料行,都必須定義成NOT ... 建立具有主索引鍵的新資料表,需要資料庫中的CREATE TABLE 權限及建立 ...

相關軟體 SQL Server Management Studio 資訊

SQL Server Management Studio
Microsoft SQL Server Management Studio Express 是一個免費的集成環境,用於訪問,配置,管理,管理和開發 SQL Server 的所有組件,以及將廣泛的圖形工具和豐富的腳本編輯器組合到一起,從而為開發人員和管理員提供對 SQL Server 的訪問所有技能水平。  這個應用程序最初作為 Microsoft SQL Server 2005 的一部... SQL Server Management Studio 軟體介紹

sql server create table primary key 相關參考資料
SQL Server: Primary Keys - TechOnTheNet

https://www.techonthenet.com

SQL PRIMARY KEY Constraint - W3Schools

To create a PRIMARY KEY constraint on the "ID" column when the table is already created, use the following SQL: MySQL / SQL Server / Oracle / MS Access:.

https://www.w3schools.com

建立主索引鍵- SQL Server | Microsoft Docs

PRIMARY KEY 條件約束內所定義的所有資料行,都必須定義成NOT ... 建立具有主索引鍵的新資料表,需要資料庫中的CREATE TABLE 權限及建立 ...

https://docs.microsoft.com

CREATE TABLE (Transact-SQL) - SQL Server - Microsoft Docs

Simple CREATE TABLE Syntax (common if not using options) ... 為索引的索引鍵資料行,或任何PRIMARY KEY 或UNIQUE 條件約束的一部分。

https://docs.microsoft.com

SQL 主鍵- 1Keydata SQL 語法教學

主鍵(Primary Key) 中的每一筆資料都是表格中的唯一值。 ... 主鍵可以在建置新表格時設定(運用CREATE TABLE 語句),或是以改變現有的表格架構 ... SQL Server:.

https://www.1keydata.com

SQL: Primary Keys - TechOnTheNet

This SQL tutorial explains how to create and drop a primary key in SQL with ... The syntax to create a primary key using the CREATE TABLE statement in SQL is:

https://www.techonthenet.com

SQL Server PRIMARY KEY - SQL Server Tutorial

In this tutorial, you will learn about the primary key and how to use the SQL Server PRIMARY KEY constraint to create a primary key for a table.

https://www.sqlservertutorial.

SQL Server CREATE TABLE: Creating a New Table in the ...

Introduction to the SQL Server CREATE TABLE statement. Tables are ... Fourth, each table should have a primary key which consists of one or more columns.

https://www.sqlservertutorial.

SQL PRIMARY KEY Constraint 限制- SQL 語法教學Tutorial

PRIMARY KEY 主鍵限制(SQL PRIMARY KEY Constraint). PRIMARY ... CREATE TABLE customer ( C_Id INT NOT NULL PRIMARY KEY, Name VARCHAR(50) NOT NULL, Address VARCHAR(255), Phone ... SQL Server / Oracle / MS Acc...

https://www.fooish.com

SQL PRIMARY KEY 约束 - w3school 在线教程

PRIMARY KEY 约束唯一标识数据库表中的每条记录。 ... SQL PRIMARY KEY Constraint on CREATE TABLE ... MySQL / SQL Server / Oracle / MS Access:.

https://www.w3school.com.cn