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retrieving data from bungled install


wfz

Anonymous
Hi, I did a couple of stupid things in the last few days and have wound up with three different GL databases. I think all of them have been upgraded to 1.3.8 by the install process at one point or another. ;-) I have a new database which is clean and two older databases which are more questionable. The good news is I can see the data in all 3 dbs using phpmyadmin and it all looks fine. I want to retrieve selected information from the older databases -- user lists and stories, basically -- and insert them as rows into (a backup copy of) the new database. Any ideas on how to do this in a reasonably safe way?
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etegration

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Registered: 02/20/02
Posts: 179
backup everything (all 3 mySQL db) before you do anything. Retrieve just the tables you want with using data and structure. Then try importing what you want into the db you want, myphpAdmin can retrieve only what you want, just choose.
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wfz

Anonymous
What happens if I copy only the columns that make sense and leave others blank or NULL? For example, in the story db, there is a storY ID database. I would probably want to leave that blank or null for import into the new table, yes? Is GL smart enough to fix any blank or NULL columns and cells in a table, or is that going to blow it up?
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Dirk

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Registered: 01/12/02
Posts: 13073
Location:Stuttgart, Germany
Quote by wfz: What happens if I copy only the columns that make sense and leave others blank or NULL?
If you check the table definitions in sql/mysql_tableanddata.php, you\'ll see that some - but not all - fields have a default value. You could leave those blank and MySQL would use the default values for them. Whether that makes sense or not depends on the context, though. For example, the default topic for stories is \"General\" - which doesn\'t make a lot of sense in case you deleted that topic ...
Quote by wfz:For example, in the story db, there is a storY ID database. I would probably want to leave that blank or null for import into the new table, yes?
No, you don\'t want that, believe me ... bye, Dirk
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wfz

Anonymous
With the added input from Dirk and using mysql_tablesanddata.php as a reference guide, the \"restore from tables\" approach is actually working pretty well....
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