开发者_Python百科Revisiting MySQL, and trying to change the structure of the table. I want to change two rows from a varchar(30) to higher.
I have a table that I added a column called phone - the table also has an id set as a primary key that auto_increments. How can I insert a random value into the phone column, that won\'t be duplicated
I created a small module for altering forms called \"form_mods\". The form I\'m altering is the \"user_profile_form\". I added a category for extra fields called \"Profile\".
I\'d like to add an OR expression to Drupal 6.x Views 2 query in the following way: Existing query: SELECT node.nid AS nid FROM node node WHERE (expr1) AND (expr2)
How can you alter t开发者_如何学JAVAhe default value set to a column in a table in SQL. I got an error from:
I am running MySQL and I need to change the data type of certain columns from an enumeration to integer. However, there are a lot of columns. (If this exists) What is the syntax to alter all columns a
hi can anyone tel me how to check whether a primary key exists or not in a table and add a primary key if not exixts in sql server compac开发者_开发百科t(.sdf)..
I have been trawling google for answers to this but no luck. Any help would be great! I have a SQL table: tblFeedback. It stores answer开发者_运维知识库s to feedback questions. The Questions are held
I have to work with a database to do reporting The DB is quite big : 416 055 104 rows Each row is very light though, just booleans and int ids.
I\'m new to hibernate. I have a transaction that fails with a HibernateException, yet the table is altered after the commit. Here is the code:
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