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ERROR: permission denied for sequence cities_id_seq using Postgres
I'm new at postgres (and at database info systems all in all). I ran following sql script on my database:
4 Answers
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Generating a unique machine id
...yourself and hash it to an arbitrary length. See the PDF specification for all SMBIOS structures available.
To query the SMBIOS info from Windows you could use EnumSystemFirmwareEntries, EnumSystemFirmwareTables and GetSystemFirmwareTable.
IIRC, the "unique id" from the CPUID instruction is deprec...
Find all storage devices attached to a Linux machine [closed]
I have a need to find all of the writable storage devices attached to a given machine, whether or not they are mounted.
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Perforce for Git users? [closed]
...ou prefer Git you can use Git with Perforce quite well. We provide a tool called Git Fusion that generates Git repositories that are kept in sync with the Perforce server. Git and Perforce people can live in harmony working on the same code, mostly unaffected by their co-workers choice of version co...
How to quit android application programmatically
I Found some codes for quit an Android application programatically. By calling any one of the following code in onDestroy() will it quit application entirely?
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How can I get a list of all functions stored in the database of a particular schema in PostgreSQL?
I want to be able to connect to a PostgreSQL database and find all of the functions for a particular schema.
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How do I disconnect all other users in tmux?
I've got a tmux session where the window is too small because some user somewhere is connected.
2 Answers
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Invalidating JSON Web Tokens
...s an emergency, or a user token was compromised, one thing you could do is allow the user to change an underlying user lookup ID with their login credentials. This would render all associated tokens invalid, as the associated user would no longer be able to be found.
I also wanted to note that it is...
Algorithm to find top 10 search terms
... looks like an awful lot of data, with a perhaps prohibitive cost to store all frequencies. When the amount of data is so large that we cannot hope to store it all, we enter the domain of data stream algorithms.
Useful book in this area:
Muthukrishnan - "Data Streams: Algorithms and Applications"
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Visual Studio (2008) 'Clean Solution' Option
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It deletes all the compiled and temporary files associated with a solution. It ensures that the next build is a full one, rather than only changed files being recompiled.
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