SQL old data stuck and causing errors - sql

Question

So i have a little issue, i wrote this code :
CREATE TABLE Inscription (
ID_Societe VarChar(25) NOT NULL, #ID de la societe (auto generé)
Nom_Societe VarChar(15), #Nom de la societe (provided as an argument when calling inscription method)
PRIMARY KEY (ID_Societe)
);
INSERT INTO Inscription (ID_Societe, Nom_Societe)
VALUES ('S152', 'Renault');
CREATE TABLE Paiement (
ID_Paiement VarChar(25), #clé primaire (auto generated)
ID_Societe VarChar(25), # clé secondaire
Montant float, #montant a déduire du compte (provided as argument)
N_Carte VarChar(25), #provided as argument (4 4 numbers seperated by spaces)
Date_Exp Date, #provided as argument format:DD-MM-YYYY
Nom_Carte VarChar(25), #name of owner of card (not necessairly the buyer)
Date_Trans Date, #Date of transaction ( a java command that gives todays date then reformat ?)
Statut VarChar(25) #(Status is a keyword, but what is this ? state of bank account, state of card ? ask prof)
);
INSERT INTO Paiement (ID_Paiement, ID_Societe, Montant, N_Carte, Date_Exp, Nom_Carte, Date_Trans, Statut)
VALUES ('P1526', 'S152', 165.99, '5244 5698 1523 6948', 2020-12-10, 'Mouad ElKhabri', 2018-07-12,'i don\'t even know');
the problem i have is for the insert into, Date_Exp i used an old value of 11-12-1984, i messed up and used EU date format and it showed an error : "Data truncation: Incorrect date value: '1984' for column 'Date_Exp' at row 1"
even though i changed the value to insert, it still brings up that error
any ideas how to fix this ?

Answer 1

Your date literals need to be enclosed in single quotes. Otherwise it's just doing math and returning an integer to be stored in your date column (which is both not what you want and not what the database wants).
Try:
VALUES ('P1526', 'S152', 165.99, '5244 5698 1523 6948', '2020-12-10', 'Mouad ElKhabri', '2018-07-12','i don\'t even know');
If you want to be super explicit you can cast this date literal to a date as part of the insert like CAST('2020-12-10' AS DATE), but that's overkill. Just insert using ANSI standard date format with single quotes and you'll be good to go.
Also.. (I'm guessing here since you didn't share what database product you are working on and they differ pretty dramatically), you probably need to escape your single quote in
'i don\'t even know'
not with a backslash but with a second single quote like:
'i don''t even know'.