Does anyone know how to generate SQL scripts from a query?
For example,
It sounds like you want to write a cursor to execute custom SQL. This is common and easy to do. What you need to do is specify a few things to help us more completely answer your question:
You can either write code (Java / C++) to generate SQL from a query, or possibly use a cursor to iterate over recordsets (PL/SQL / TSQL). You can use the results to give you information that can then be executed as SQL via an exec (of some kind depending on the language).
... but please investigate SQL injection before implementing dynamic SQL. Look into Parameterized Queries...
With Microsoft Sql Server, the best way to script database objects is to use SMO . Sql Management Objects is ac# api, but you could always execute t-sql scripts from c# using a SqlClient.
You could want something like
select 'UPDATE '+table_name+ ' SET description=''(new!) ''+description WHERE description_date>''2008-11-01'''
from information_schema.tables where table_name like '%Description'
(this query generates queries which prepend value of description column with '(new!) ' for each recent row in each table which name ends with 'Description' in a fictional database).
The system view INFORMATION_SCHEMA.TABLES contains data about all database tables, there are also INFORMATION_SCHEMA.VIEWS , INFORMATIONS_CHEMA.COLUMNS and other system views in INFORMATION_SCHEMA table schema.
Hope this will help.
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