Can anyone help me know which table in ODI 10g stores details about all the sessions launched.
Odi Stores all the data in SNP_Session table on Work Repo.
Related
I tried to look into data dictionary of postgresql for long time
but i didn't help.
I'm trying to know what state is the data file in, is it available for the db instance or not
photo with example
I tryed to look into pg_class table
Postgres does not have the concept of "online" (or "offline") data files.
When you create a table it creates a file for that table. For every GB of data, Postgres will add a new file. If you drop the table all files belonging to that table are removed.
So the files for a table are always "online".
For more details on how Postgres stores the data, I recommend reading the chapter Database Physical Storage in the manual.
Or read The Internals of PostgreSQL - Chapter 1: Database Cluster, Databases, and Tables
I have to create an app which transfer data from snowflake to postgres everyday. Some tables in postgres are truncated before migration and all data from corresponding snowflake table is copied. While for other tables, data after last timestamp in postgres is copied from snowflake.
This job has to run at night sometime and not when customers are using the service at daytime.
What is the best way to do this ?
Do you have constraints, limiting your choices in:
ETL or bulk data tooling
Development languages?
According to this site, you can create a foreign data wrapper on Postgresql for snowflake
I have a table in an MS Access db that I want to export to a PostgreSQL database. Every 2 or so months, I want to move all records from the Access table to a table in Postgres.
Right now, I am using the Export to ODBC option in Access to do this, but every time it exports as an entirely new table in Postgres. Is there a way for me to routinely append the records in the Access table to an existing table in my Postgres database? I have come across the option of a FDW but I am not familiar with how to install/use it.
I am new to using PostgreSQL, and have little to no experience working with databases other than Access, so any input/advice would be greatly appreciated.
I have installed graphite with PostgreSql db (https://www.digitalocean.com/community/tutorials/how-to-install-and-use-graphite-on-an-ubuntu-14-04-server)
Everything is great and I put some data in it. My question is, can I manage data in Postgres db? I have looked for tables with data in db, but I cant find them. Where are they? I just found only these tables.
table account_profile
table account_variable
table account_view
...
table django_content_type
table tagging_tag
table tagging_taggedi
Where are sent data exactly stored? Thanks.
According to the link you posted, Graphite is using the components called 'whisper' and 'Carbon' to store the data. The actual data are stored in this database component.
PostgreSQL is used for metadata by the Django-based web-frontend.
Currently we have a workbook developed in Tableau using Oracle server as the data store where we have all our tables and views. Now we are migrating to Redshift fora better performance. We have the same table structure as in the Oracle with the same table names and the field names in the Redshift. We already have the Tableau workbook developed and we need to point to Redshift tables and views now. How do we point the developed workbook to Redshift now, kindly help.
Also let me know any other inputs in this regard.
Thanks,
Raj
Use the Replace Data Source functionality of Tableau Desktop
You can bypass Replace Data Source and move data directly from Oracle to Redshift using bulk loaders.
Simple combo of SQL*Plus + Python + boto + psycopg2 will do the job.
It should:
Open read pipe from Oracle SQL*Plus
Compress data stream
Upload compressed stream to S3
Bulk append data from S3 to Redshift table.
You can check example of how to extract table or query data from Oracle and then load it to Redshift using COPY command from S3.