Open Navicat.
Open the database where the data table is located, right-click the database table where you want to add fields, and then click "Design Table".
Now enter the table design interface.
Related recommendations: "Navicat for mysql graphic tutorial"
Click the "Trigger" tab and enter the trigger Name, such as trigger1.
Select the trigger condition, before or after.
#Select which table operation events are triggered, optional insert, update and delete.
In the "Definition" below, enter the sql statement to be executed when triggered, such as insert into oldtable(code) values(newtable.code), and then click "Save". You're done creating the trigger.
The above is the detailed content of How to write triggers in navicat. For more information, please follow other related articles on the PHP Chinese website!

Navicat is not free, but offers a 14-day trial version and requires a license to be purchased after the trial period expires. Navicat has a variety of pricing plans: 1. The personal version is suitable for individual developers and small teams; 2. The enterprise version is suitable for large enterprises; 3. The education version is specially designed for educational institutions.

DBeaver and DataGrip are database management tools that go beyond Navicat. 1.DBeaver is free and open source, suitable for small projects, and supports multiple databases. 2.DataGrip is powerful and suitable for complex large-scale projects, providing advanced code completion and SQL reconstruction.

Navicat improves database productivity with its intuitive interface and powerful features. 1) Basic usages include connecting to databases, managing tables and executing queries. 2) Advanced functions such as data synchronization and transmission simplify operations through a graphical interface. 3) Common errors can be solved by checking connections and using syntax checking functions. 4) It is recommended to use batch operations and regular backups for performance optimization.

Navicat's replacement feature allows you to find and replace text in database objects. You can use this feature by right-clicking on the object and selecting Replace, enter the text you want to find and replace in the pop-up dialog box and configure options such as Find/Replace Range, Case Sensitivity, and Regular Expressions. By selecting the Replace button, you can find and replace text and configure options as needed to avoid unexpected changes.

Solutions to Navicat activation failure: 1. Check the correctness of the activation code; 2. Ensure the network connection is normal; 3. Temporarily disable the antivirus software; 4. Reset the activation status; 5. Contact technical support.

To resolve errors when Navicat runs SQL files, follow these steps: 1. Check for SQL syntax errors; 2. Make sure the database connection is established; 3. Check file encoding; 4. Adjust server settings; 5. Check temporary space; 6. Disable certain plugins; 7. Contact Navicat Support if necessary.

Steps to index in Navicat: Connect to the database. Select the table to index. Open Index Manager. Specify the index name. Select the index column. Select the index type. Select a unique index (optional). Click OK to create an index.

How to set and restore Navicat shortcuts? Click "Tools" in the main menu > "Options" > "Shortcut Keys", select the action in the "Command" list, enter the key combination in the "Shortcut Keys" field, and click "Add" to save. To restore the default shortcut keys, click "Tools" > "Options" > "Shortcut keys", and then click the "Restore Default Value" button.


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