I have to create a table (H2 embedded database) using fields from other tables. I decided to use CREATE TABLE AS statement.
I\'ve set up a Nhibernate Project in C# with a Local SQLite Database, and if got an issue while saving my Nhibernate object, it says me that my primarykey is not unique, thats right but i added a Gene
I need to copy a row based on some condition(where clause), from a table,make a duplicate entry in same table and update just one column(a foreign_key). But because \"select * from Table_name\" return
For one reason or another the pre-existing Postgres schema I\'m using with my Rails app doesn\'t have a default sequence set for a table\'s primary key, so I am required to query for it every time I w
My table structure is: CREATE TABLE IF NOT EXISTS `users_settings_temp` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
I found this reading material on choosing a primary key. Is there a guide / blog post on how to choose t开发者_如何转开发he primary key for a given table?
I have a listview with a custom adapter that uses an sql cursor.When I add items to my listview, the item will be added to my sqlite3 database and the listview will refresh.
I was wo开发者_开发百科ndering if anybody knew a good way to create a unique random integer id for a primary key for a table. I\'m using MySQL. The value has to be integer.In response to: \"Because I
I have a table with a primary key which is built from three 开发者_运维技巧columns. In an other table I would like to reference to them as one single column foreign key. How can this be resolved? Mayb
Looking at a \"mysqldump -d\" and see a key that is KEY, not \"PRIMARY KEY\" or \"FOREIGN KEY\" What is KEY?
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