#Psequel cannot edit tables without primary key password#
Oh, and there're 39 unique passwords for "bob" (157 of the rows all show the password "password", of course). Unfortunately, for some reason there is a duplicated record which means that I can't create a primary key - and in a bit of a catch 22 I can't change or delete the record so that I create the key because there isn't a key (ad infinatum). The title says it all really - there's a table in a MySql DB that I want to be able to edit - so I try to assign a primary key. And, if you've tried to connect rows in some other table to user without a primary key/foreign key relationship - every row in message marked as sent_by "bob" ties back to every one of those 300 user entries. Can't Edit Table Because there's no Primary Key, Can't Create Key Because there are Duplicate Values. This makes sense since the rows in a table without a primary or unique key constraint cannot be uniquely identified. To list all tables without a primary key, you can use this: select tbl.tableschema, tbl.tablename from informationschema. And then, quoting the docs: > If the table does not have a primary or unique key, then the change event’s key will be null.
What you do have is a user table with 300 separate entries for a user named "bob", many of which have different values in the other columns. There we'll take the first unique key found in the table definition as message key, if there's no PK. It's true, without a primary key (or some unique key), you don't have an insertion anomaly if you go to insert the same data multiple times.
It makes it much easier to maintain the data. Should you create a database table without a primary key? No.Įvery table should have some column (or set of columns) that uniquely identifies one and only one row. And, I believe that holds true for almost every (if not every) major DBMS platform. You can access the build editor by clicking the PvP Build button at the top. you shouldnt change the default setting without a good reason. Hey guysSo Ive tried some Spellbreaker in PvP, but cant find a set that. To see the select behind the report you can copy it and create it as user defined report. Another very useful quality check you can find there is 'Tables with non indexed foreign keys'. Can you create a database table without a primary key? Well, you just said you can in SQLite. Should be the literal primary key column name if this Models table has a simple primary. Look at the reports tab and then: All Reports>Data Dictionary Reports>Tables>Quality>Tables without primary key.
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