I have a database I want to restore at certain location, my second hd. How I do this in PgAdmin 4?
If your backup file is at a certain location, select it in the backup and restore dialog window.
If you want your database to save data to a certain location, you can achieve that with tablespaces. You can move stuff in db between different tablespaces using an alter query.
If you want the database to save data by default and only to that certain location, you can install a new cluster/instance and set its data directory to your desired location from the start, then restore your database to that. It's also possible to move an existing cluster to a new location and do the same.
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I am using the restore db to import backup into a test environment database that works fine, but I need to extend this import process to several backups from several dates into a unique test environment db... What is the command to append backups into a unique database...
thanks
Phil
You write "I get only full offline database backup files from several time date (2 weeks of production) that I need to restore in a test database for analysis... example 4 backups files of 2 weeks of data = 2 months of data ...."
and you also write "What is the command to append backups into a unique database..."
While there is no explicit method for full-offline-backup images to be combined for Db2-LUW, there's always another way to get what you need...given the right skills and tools.
IF you have a FULL backup image, it can either be restored to a new database, or it can fully overwrite an existing database. If you have 4 FULL backup images, each can be restored either into a (uniquely named) database (or overwrite 4 existing databases).
You can also restore specific tablespaces from a backup image, if properly configured. Some sites have designed discrete tablespaces for specific time periods (one per day/week/month) to help with such activities. Some sites have designed their tables to be range partitioned (with each time period having its own partition (and sometimes dedicated tablespaces also), and this makes subsequent merging of content more easy with the right skills.
If you are competent with scripting, you can restore the first (earliest) image, export the relevant table contents to flat-files, restore the next backup image and export the relevant tables to new flat-files (repeat as needed), then load these flat-files into a table for analysis. If your database size is small then this can be considered a keep-it-simple approach.
You can also do clever things with federation if you restore to discrete databases.
Separately purchasable tools exist to let you extract selected content from a backup image (which can then be loaded into a Db2 database), without needing to do a restore action. These are not included with the Db2 product. So you could extract specific table contents from a backup image if you pay for the right tools and learn how to use them. Speak with your IBM Salesperson. Such tools may require currently supported versions of Db2 however.
I have installed PostgreSQL 13.1 on two computers, a laptop and desktop.
I created database using a Tablespace on a portable SSD drive under F:\MyProject\DB\PG_13_202007201\20350. So I expect all the database files to be in there somewhere.
I want to work on the database on the SSD drive which is fine on the laptop that created the database, but when I go to my desktop I can't figure out how to attach (SQL Server style) the existing database/tablespace and continue working on it.
Is there a way to work like this with Postgresql?
You cannot do that.
A tablespace contains just the data files, but essential information is stored in the metadata (the table name, the columns and their data type, constraints, ...) and elsewhere (for example, the commit log determines which table entries you can see and which ones you cannot).
In short, a tablespace is not self-contained, and you cannot use a tablespace from one database cluster with another database cluster.
If you want to move data between databases, use pg_dump.
Ive used the Data Comare tool to update schema between the same DB's on different servers, but what If so many things have changed (including data), I simply want to REPLACE the target database?
In the past Ive just used TSQL, taken a backup then restored onto the target with the replace command and/or move if the data & log files are on different drives. Id rather have an easier way to do this.
You can use Schema Compare (also by Red Gate) to compare the schema of your source database to a blank target database (and update), then use Data Compare to compare the data in them (and update). This should leave you with the target the same as the source. However, it may well be easier to use the backup/restore method in that instance.
I have around 10 postgresql databases on my machine. Some are huge, some are small. I want to move the huge ones to a new disk while keeping the small ones where they are. Is this possible? If so, how do I do it? All I've been able to find is how to move the whole data directory to a new location, but that would move all the databases and I only want to move some of them.
You can move them using tablespace. Here's how can You do it :
CREATE TABLESPACE dbspace LOCATION '/data/dbs';
Then,
ALTER DATABASE dbname SET TABLESPACE dbspace;
Can i restore different dumps(databases) on a single database created through the database configuration assistant in oracle 10g.
i mean to say that the previous tablespaces must be overwritten by the new one thus saving the time to create new tablespace everytime we restore a dump file.
yes it is possile by creating a new user.the new user will act as a new schema and can exist with the previously imported data without overwriting it.
how ever if i want to import different data using the same user then the previously stored data must be dropped along with the user first,the agin the user must be created;
Command to do this is
DROP USER CASCADE;
This will drop the previously stored data without deleting the tablespaces thus saving time to create new tablespaces.