ABL triggers do not cover SQL operations. From ABL, someone can programmatically disable triggers using the DISABLE TRIGGERS statement. Then we will not know that this code has been changed. The ABL code of the trigger can be illegally replaced by someone. The ABL trigger is not part of the database and must be stored separately in the file system.Ģ. A new table is created with the default name 'newtable'. Universal Database Tool DBeaver Community is a free cross-platform database tool for developers, database administrators, analysts, and everyone working with data. Right?īut it is inconvenient for database exploitation:ġ. Set focus to 'Tables' in the Database Navigator, select Create New Table. Suppose the use of FK is not possible in OpenEdge at the SQL level.Īt the OpenEdge ABL level to implement something like referential integrity I have to write an ABL procedure for the trigger to delete, create, etc. Am I wrong again? If I'm wrong, what is this article for? It is a bug? Where it is a bug, in the article or in my code above? /SQL-command-to-add-a-FOREIGN-KEY-constraint-to-an-existing-table-fails-with-the-error-7545įrom this article I conclude that it is still possible at the SQL level. There also use the PUB scheme in the example. Judging by this article, this is possible, but only need to be sure that the table columns chosen as primary or foreign key do not accept NULL values by making them mandatory. ![]() I wanna to create a foreign key between Order.Cust_Num and Customer.Cust_Num fields. Both fields have the MANDATORY option:ĪDD FIELD "Cust_Num" OF "Customer" AS characterĪDD FIELD "Name" OF "Customer" AS characterĪDD FIELD "Order_Num" OF "Order" AS characterĪDD FIELD "Cust_Num" OF "Order" AS character You can right click to Database and click to Create New Database or use alt + insert shortcut to create a new database. My solution is to log in to the postgres db using psql with the -E option as follows: psql -E -U username -d database. ![]() These are the data definitions for my two test tables. Make sure that the table columns chosen as primary or foreign key do not accept NULL values by making them mandatory. SQL Error : No matching key defined for the referenced table (7545)Ĭolumns defining a primary or foreign key must not accept the NULL value. I do it in the Dbeaver. But I got the following error: Here’s the basic syntax of the CREATE TABLE statement: CREATE TABLE IF NOT EXISTS tablename ( column1 datatype ( length) columnconstraint, column2 datatype ( length) columnconstraint. ![]() I am trying to add a foreign key to my existing table using by SQL command.ĪLTER TABLE PUB."Order" ADD CONSTRAINT ORDER_CUSTOMER_FK FOREIGN KEY ("Cust_Num") REFERENCES PUB."Customer"("Cust_Num") To create a new table, you use the CREATE TABLE statement.
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