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How to import CSV file data into a PostgreSQL table?
...:= (select col_1 from temp_table limit 1);
-- update the column names based on the first row which has the column names
for col in execute format('select unnest(string_to_array(trim(temp_table::text, ''()''), '','')) from temp_table where col_1 = %L', col_first)
loop
execute for...
What is compiler, linker, loader?
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explained with respect to, linux/unix based systems, though it's a basic concept for all other computing systems.
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Linkers and Loaders from LinuxJournal explains this concept with clarity. It also explains how the classic name a.out came. (assembler output)
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Comparing arrays in JUnit assertions, concise built-in way?
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Programmatically set height on LayoutParams as density-independent pixels
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How do I get a UTC Timestamp in JavaScript?
... I use this, along with ".split('T')[0]" for easy YYYY-MM-DD date-based comparisons.
– Sean O
Sep 4 '19 at 20:59
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“Insert if not exists” statement in SQLite
I have an SQLite database. I am trying to insert values ( users_id , lessoninfo_id ) in table bookmarks , only if both do not exist before in a row.
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dplyr: “Error in n(): function should not be called directly”
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What is the difference between varchar and nvarchar?
...id doing encoding conversions every time you read from or write to the database. Conversions take time, and are prone to errors. And recovery from conversion errors is a non-trivial problem.
If you are interfacing with an application that uses only ASCII, I would still recommend using Unicode in th...
Simulate airplane mode in iPhone Simulator
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Overwrite or override
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