BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Development DB Synchronization          BorlandTalk.com Forum Index -> Delphi Databases (SQL Servers) View previous topic :: View next topic   Author Message eshipman Guest Posted: Fri Dec 05, 2003 3:36 pm    Post subject: Development DB Synchronization We have 5 developers, 3 QA people and several "sales" people that need current databases. The problem lies in the fact that during "demos" and testing and development, data gets entered by each of them and they may want to keep that data when an upgrade is done. We know that we can keep an updated copy of the DB on a central server and have each user DTS that copy to their local machines. We also know that we can send out backups and have everyone do a restore to their local DBs. But these options do not readily solve the problem of allowing each user to keep his own data. How have you all handled this and is there a "magic bullet" that will help us to keep all our DBs updated AND keep our local data entact? We are using MS SQL Server 2000 on WinXP. Back to top Eric Hill Guest Posted: Fri Dec 05, 2003 3:48 pm    Post subject: Re: Development DB Synchronization Since the structure typically changes from release to release, I built an application that reverse engineered the data into SQL DML commands. Basically the application enumerated all the tables and their relationships and spit out a bunch of INSERT INTO commands to a text file. You could then create a brand new database with the new master DDL script, and run the generated SQL to populate the new structure. Any incompatible changes in structure would require mostly trivial find/replace changes in the SQL script. Eric Back to top Rob McDonell Guest Posted: Mon Dec 08, 2003 3:10 am    Post subject: Re: Development DB Synchronization Eric Hill wrote: Quote: Since the structure typically changes from release to release, I built an application that reverse engineered the data into SQL DML commands. Basically the application enumerated all the tables and their relationships and spit out a bunch of INSERT INTO commands to a text file. How would you handle BLOB fields? You couldn't write the contents of those into a text file. --Rob McDonell Back to top Eric Hill Guest Posted: Mon Dec 08, 2003 4:29 am    Post subject: Re: Development DB Synchronization Quote: How would you handle BLOB fields? You couldn't write the contents of those into a text file. See these two PL/SQL functions: http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96540/functions53a.htm#1023952 http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96540/functions97a.htm#78519 They are HEXTORAW and RAWTOHEX. They make dumping binary data into text easy :) If you don't have something like this available, locate the primary key for the table, then extract the binary data into files named by primary key and stored in folders named the same as the table. 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