Trigger INSERT SQL multiple data - mysql

Question

I'm trying to create a trigger with sql so that When I insert a row in Point I insert before it a row in PointAbs.
CREATE TABLE PointAbs (
ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
X INTEGER NOT NULL,
Y INTEGER NOT NULL
);
CREATE TABLE Point(
ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
Name VARCHAR(50) ,
IDPointAbs INTEGER NOT NULL,
FOREIGN KEY (IDPointAbs) REFERENCES PointAbs(ID) ON DELETE CASCADE
);
the problem is that I need to provide "X" and "Y" for PointAbs and "Name" for Point at the same time. Ho can I achieve that?
I could use a JDBC functionality to get the last insertedID but I don't like it that way.

Answer 1

It seems like the relation is 1 to 1, as you have to create a new PointAbs for each Point. Unless you have another table that relates to PintAbs, there will be one PointAbs for each Point. If you don't need two separated objects, you can state X and Y as an index of Point:
CREATE TABLE Point(
ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT,
Name VARCHAR(50) ,
IDPointAbs INTEGER NOT NULL,
X INTEGER NOT NULL,
Y INTEGER NOT NULL,
INDEX INDEX_X_Y ON Point(X,Y)
);
Of course, this might not be possible nor desirable in your design.
As you can't send parameters to the trigger like the X and Y values, your best option is to use a single transaction for both inserts.
BEGIN;
INSERT INTO PointAbs(X,Y) VALUES (10,15);
INSERT INTO Point(Name, IDPointAbs) VALUES ('Fancy Name', LAST_INSERT_ID(PointAbs));
COMMIT;
You can control the insertions using the programming language of the system back-end, but as there is no specific language mentioned other than mysql, I won't enter into details.