How to add constraints in navicat

The steps to add constraints in Navicat are as follows: 1. Open the table design window; 2. Navigate to the "Constraints" tab; 3. Select the constraint type; 4. Define the constraint conditions; 5. Set the constraint options; 6 . Apply constraints; 7. Save changes.

Steps to add constraints in Navicat

1. Open the table design window

• Right-click the table to which you want to add constraints and select Design Table.

2. Navigate to the Constraints tab

• In the table design window, select the Constraints tab.

3. Select the constraint type

• Select the required constraint type from the "Constraint Type" drop-down menu, such as primary key, foreign key, Unique constraints or check constraints.

4. Define constraints

• According to the selected constraint type, define the constraint conditions in the "Constraint" text box. For example, for a primary key, specify the column name; for a foreign key, specify the referencing table and column.

5. Set constraint options

• In the Options section, you can set additional options for the constraint, such as auto-increment (for primary keys) Or delete the rule (for foreign keys).

6. Apply constraints

• Click the "Add" button to apply constraints.

7. Save changes

• Click the OK button to save changes and return to table view.

The above is the detailed content of How to add constraints in navicat. For more information, please follow other related articles on the PHP Chinese website!