SQL Server contains the NEWID() function. This function creates a unique value of type uniqueidentifier. We can use this function in several ways to generate unique numbers to suit our requirements : NEWID() generate alphanumeric value of 36 char. ...
In the grid, click Columns and then click the ellipses (…) to the right of the property. Rename the constraint Type a new name in the Name box. Make sure that your new name does not duplicate a name in the Selected Primary/Unique Key or Index list. Set the clustered option In the...
此外,還可以使用 CREATE TABLE 和ALTER TABLE 陳述式來設定 PRIMARY KEY 和UNIQUE 條件約束上的鎖定資料粒度。 為了提供回溯相容性,sp_indexoption 系統預存程序也可以設定資料粒度。 若要顯示指定之索引的目前鎖定選項,請使用 INDEXPROPERTY 函數。 分頁層級鎖定、資料列層級鎖定、或是分頁層級與資料...
The System Configuration Checker will run a discovery operation on your computer. To continue, clickOK. Setup log files are created for your installation. For more information, seeHow to: View and Read SQL Server Setup Log Files. On the Product Key page, select an option button to indicate ...
To install to default directories, click Next. 重要 If you specify non-default installation directories, ensure that the installation folders are unique to this instance of SQL Server. None of the directories in this dialog box should be shared with directories from other instances of SQL Server....
It is important to note that if you add any other resources to the SQL Server group, those resources must always have their own unique SQL network name resources and their own SQL IP address resources. Do not use the existing SQL network name resources and SQL IP address resources for anyth...
To create a query In the Configuration Manager console, click Monitoring. In the Monitoring workspace, click Queries and then, in the Home tab, in the Create group, click Create Query. On the General tab of the Create Query Wizard, specify a unique name and an optional comment for the que...
A primary key must use unique values. If the primary key consists of more than one column, the combination of values in these columns must be unique across the whole table. Since the key is meant to identify every row uniquely, it can’t appear more than once. ...
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Power BI PowerQuery.It is doing the almost exactly the same thing as the other SQL answer....