Here is a description of the above parameters: REFERENCES parentTable (parent_column1, parent_column2. ‘Course_ID’ and ‘Course_Strength’ as two columns for child table Course_Strength_TSQL.’ However, ‘Course_ID’ shall be Foreign Key.īelow is the syntax to create a table with FOREIGN KEYįOREIGN KEY (child_column1, child_column2. Parent Table: Reconsider, we have an existing Parent table with table name as ‘Course.’Ĭourse_ID and Course_name are two columns with Course_Id as Primary Key.Ĭhild Table: We need to create the second table as the child table with the name as ‘Course_Strength_TSQL.’ T-SQL: Create a Parent-child table using T-SQL
Result: We have set Parent-child relationship between ‘Course’ and ‘Course_strength.’ Step 8) Give the Table name as ‘Course_Strength’ and click on OK. ‘Foreign Key Table’- Select ‘Course_Id’ column as ‘Foreign Key table’ column. Step 6) ‘Primary Key Table’ – Select ‘Course_Id’ column as ‘Primary Key table’ column. Step 5) Select ‘Primary Key Table’ as ‘COURSE’ and the new table now being created as ‘Foreign Key Table’ from the drop down. Step 4) In ‘Table and Column Spec’ click on ‘…’ icon Step 3) In ‘Foreign Key Relationship,’ Click ‘Add’ Step 2) Enter two column name as ‘Course_ID’ and ‘Course_Strength.’ Right click on ‘Course_Id’ Column. Step 1) Right Click on Tables>New> Table… However, ‘Course_ID’ shall be Foreign Key. ‘Course_ID’ and ‘Course_Strength’ as two columns. Parent Table: Say, we have an existing Parent table as ‘Course.’ Course_ID and Course_name are two columns with Course_Id as Primary Key.Ĭhild Table: We need to create the second table as a child table. We can Create a Foreign Key in SQL server in 2 ways:
The Below Foreign Key in SQL example with diagram summarizes all the above points for FOREIGN KEY How Foreign Key Works
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download linkĭownload Valentina Studio Pro 12.5.1 macOSĭownload Valentina Studio Pro 12.0.A Foreign Key provides a way of enforcing referential integrity within SQL Server. The latest version without closing problem is 12.0.2. Note: Versions 12.0.3 and later on some systems close after a few minutes.
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