Delphi win32 app, Access database: migrating from ADO to FireDAC
I’m in the process of migrating my Delphi 12 VCL windows application from MS Access database to PostgreSQL .
My first step is to migrate the provider from ADO to FireDAC.
Using ADO I could create a new table with referentiual integrity towards an existing table using a TADOQuery:
CREATE TABLE Absence (
ID COUNTER,
ManID INTEGER,
...(felter udeladt)...
CONSTRAINT Absence_PK PRIMARY KEY (ID),
CONSTRAINT Absence_Men_FK FOREIGN KEY (ManID) REFERENCES Men ON DELETE CASCADE
);
But with a FireDAC TFDQuery I get the error
EMSAccessNativeExceptionexception message : [FireDAC][Phys][ODBC][Microsoft][ODBC Microsoft Access Driver] Syntax error in CONSTRAINT clause.
If I remove “ON DELETE CASCADE” the error is gone.
Can’t FireDAC create cascading delete? I get the feeling reading
text
Is it a limitation of ODBC?