Hi everyone,
When creating a table I have a autonumber primary key, a varchar(30) field that is not null and another field that not null is not selected. Here is the table creation command i used.
CREATE TABLE `TableName` (`ID` INT (3) UNSIGNED DEFAULT '0' NOT NULL AUTO_INCREMENT, `name` VARCHAR (30) NOT NULL, `place` CHAR (30), PRIMARY KEY(`ID`), UNIQUE(`ID`), INDEX(`ID`));
Now when i put data into the table i can't have all blanks which is right. When i put data into the field that allows nulls the not null one gets '' as its data and goes on. I though NULL and '' were the same thing. Am i nuts?
I don't know if you're nuts or not, but NULL and the empty string are very definitely not the same thing.
INSERT INTO TableName (ID, name, place) VALUES (NULL, NULL, NULL); gives me and error which is what I want
but INSERT INTO TableName (ID, name, place) VALUES (NULL, '', NULL);
goes without any problem and i thought it should return and error also
It won't, because '' is different than NULL.
thanks for any help or comments
,Michael
-- Paul DuBois http://www.kitebird.com/ sql, query
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