I have a bunch of tables whose primary key is made up of the foreign keys of other tables (Composite key).
I want to loop through a collection of objects and add them all to a table.The destination table has an auto-increment field.If I add a single object there is no problem.If I add two objects both with
can I print the id, even if it\'s autoincrement ? Because the way I\'m doing I\'m using an empty variable for id.
I have been looking for a way to define an autoincrement data type in Oracle and have found these questions on Stack Overflow:
I have a database with around 40 tables and need to rename every index column. IE USER a table has a bunch of fields like
I\'m developing in LAMP (Linux+Apache+MySQL+PHP) since I remember myself. But one question was bugging me for years now. I hope you can help me to find an answer and point me into the right direction.
I have a table with existing data. Is there a way to add a primary key without deleting and re-creatin开发者_开发问答g the table?(Updated - Thanks to the people who commented)
CakePHP 1.3.0, mysqli I have a model, Manifest, whose ID should be the unique number from a printed form.However, with Manifest.id set as the primary key, CakePHP is helping me by setting up auto-inc
What is the easiest and most efficient way to create an auto-increment counter for every data row in google appengine?
I am trying to alter a table with adding a new column setting it as auto increment and with a key. The table alre开发者_JAVA技巧ady has one key and this one will be an addition. The error I get is th
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