create table unique index
在資料表或檢視表上建立唯一索引。Creates a unique index on a table or view. 在唯一索引中，任兩個資料列都不能有相同 ..., Simple CREATE TABLE Syntax (common if not using options) CREATE TABLE ... n ] ) | INDEX index_name CLUSTERED COLUMNSTORE | INDEX ... 如果 PRIMARY KEY 或 UNIQUE 條件約束建立了叢集索引，資料表的資料 ...,The CREATE INDEX statement is used to create indexes in tables. Indexes are ... CREATE UNIQUE INDEX Syntax. Creates a unique index on a table. Duplicate ... ,RDBMS will create a unique index for ISBN_NO since this column is defined as a PRIMARY KEY. PRIMARY KEY field can also be of Composite type, which is to ... ,The CREATE UNIQUE INDEX command creates a unique index on a table (no duplicate values allowed). Indexes are used to retrieve data from the database ... ,SQL Server unique index overview. First, specify the name of the unique index after the CREATE UNIQUE INDEX keywords. Second, specify the name of the table to which the index associated and a list of columns that will be included in the index. ,SQL UNIQUE Constraint on CREATE TABLE. The following SQL creates a UNIQUE constraint on the "ID" column when the ... DROP INDEX UC_Person;. ,Unlike the PRIMARY KEY index, you can have more than one UNIQUE index per table. To create a UNIQUE index, you use the CREATE UNIQUE INDEX ... , 在[資料表設計工具] 功能表上，按一下[索引/索引鍵] 。On the Table Designer menu, click Indexes/Keys. 在[索引/索引鍵] 對話方塊中 ..., UnitMeasure table using the Name column. CREATE UNIQUE INDEX AK_UnitMeasure_Name ON Production.UnitMeasure (Name); GO.
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 create table unique index 相關參考資料
CREATE INDEX (Transact-SQL) - Microsoft Docs
在資料表或檢視表上建立唯一索引。Creates a unique index on a table or view. 在唯一索引中，任兩個資料列都不能有相同 ... https://docs.microsoft.com CREATE TABLE (Transact-SQL) - Microsoft Docs
Simple CREATE TABLE Syntax (common if not using options) CREATE TABLE ... n ] ) | INDEX index_name CLUSTERED COLUMNSTORE | INDEX ... 如果 PRIMARY KEY 或 UNIQUE 條件約束建立了叢集索引，資料表的資料 ... https://docs.microsoft.com SQL CREATE INDEX Statement - W3Schools
The CREATE INDEX statement is used to create indexes in tables. Indexes are ... CREATE UNIQUE INDEX Syntax. Creates a unique index on a table. Duplicate ... https://www.w3schools.com SQL Create Table with Indexes - W3Processing.com
RDBMS will create a unique index for ISBN_NO since this column is defined as a PRIMARY KEY. PRIMARY KEY field can also be of Composite type, which is to ... http://www.w3processing.com SQL CREATE UNIQUE INDEX - W3Schools
The CREATE UNIQUE INDEX command creates a unique index on a table (no duplicate values allowed). Indexes are used to retrieve data from the database ... https://www.w3schools.com SQL Server Unique Index & Their Practical Usages
SQL Server unique index overview. First, specify the name of the unique index after the CREATE UNIQUE INDEX keywords. Second, specify the name of the table to which the index associated and a list of ... https://www.sqlservertutorial. SQL UNIQUE Constraint - W3Schools
SQL UNIQUE Constraint on CREATE TABLE. The following SQL creates a UNIQUE constraint on the "ID" column when the ... DROP INDEX UC_Person;. https://www.w3schools.com Using MySQL UNIQUE Index To Prevent Duplicates
Unlike the PRIMARY KEY index, you can have more than one UNIQUE index per table. To create a UNIQUE index, you use the CREATE UNIQUE INDEX ... https://www.mysqltutorial.org 建立唯一的條件約束Create Unique Constraints - Microsoft Docs
在[資料表設計工具] 功能表上，按一下[索引/索引鍵] 。On the Table Designer menu, click Indexes/Keys. 在[索引/索引鍵] 對話方塊中 ... https://docs.microsoft.com 建立唯一索引- SQL Server | Microsoft Docs
UnitMeasure table using the Name column. CREATE UNIQUE INDEX AK_UnitMeasure_Name ON Production.UnitMeasure (Name); GO. https://docs.microsoft.com |