Hi Ken,
Oracle has Dual does MySql have something similar?
MySQL doesn't have a dual table. But if you take a look at the
Dual in Oracle, you'll only see this:
CREATE TABLE Dual (Dummy VARCHAR(1));
INSERT INTO Dual ('X');
So you can easily create one yourself.
In Oracle I use SYSDATE and USER a lot as default column values when
creating a table. Can you do something similar in MySql and how?
According to http://www.mysql.com/doc/en/CREATE_TABLE.html
a DEFAULT is:
A DEFAULT value has to be a constant, it cannot be a function or an
expression.
Does MySql support sequences? How?
No, not as seperate objects. It does support an auto-inc type column.
Relationships - can the code be interfered with or do I have to wait for
triggers?
Foreign key constraints? Only available in the InnoDB table type.
Read the docs on that.
With regards,
Martijn Tonies
Database Workbench - developer tool for InterBase, Firebird, MySQL MS SQL
Server.
Upscene Productions
http://www.upscene.com
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