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Insert, on duplicate update in PostgreSQL?
... the_table (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
Searching postgresql's email group archives for "upsert" leads to finding an example of doing what you poss...
What's the best visual merge tool for Git? [closed]
...'s the best tool for viewing and editing a merge in Git? I'd like to get a 3-way merge view, with "mine", "theirs" and "ancestor" in separate panels, and a fourth "output" panel.
...
How to find the size of localStorage
...= ((localStorage[x].length * 2 + x.length * 2)/1024); log.push(x.substr(0,30) + " = " + xLen.toFixed(2) + " KB"); total+= xLen}; if (total > 1024){log.unshift("Total = " + (total/1024).toFixed(2)+ " MB");}else{log.unshift("Total = " + total.toFixed(2)+ " KB");}; alert(log.join("\n"));
P.S. Sn...
Cannot deserialize the JSON array (e.g. [1,2,3]) into type ' ' because type requires JSON object (e.
... me. thanks
– garish
Aug 10 '17 at 13:49
1
If you wanted to keep it as a single object instead of...
How to grep a text file which contains some binary data?
...ile through cat -v, e.g
$ cat -v tmp/test.log | grep re
line1 re ^@^M
line3 re^M
which could be then further post-processed to remove the junk; this is most analogous to your query about using tr for the task.
share
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What's the difference between a temp table and table variable in SQL Server?
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393
There are a few differences between Temporary Tables (#tmp) and Table Variables (@tmp), althou...
Converting from a string to boolean in Python?
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30 Answers
30
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Android Studio Project Structure (v.s. Eclipse Project Structure)
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203
The mystery: Android Studio's Project Structure and Build System
I don't know if this is becaus...
ASP.NET MVC 5 - Identity. How to get current ApplicationUser
...a context for starters, but going forward the user database tables change (3 times in the past 2 years) but the API is consistent. For example the users table is now called AspNetUsers in Identity Framework, and the names of several primary key fields kept changing, so the code in several answers wi...