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SQLite add Primary Key
...n't help you. Modify this first to your needs
Also please don't forget to read the comments in the code .
The Code
Use this as a method in your class to check 1st whether the column you want to add is missing . We do this just to not repeat the process of altering the table receipt_barcode.
Just...
In C/C++ what's the simplest way to reverse the order of bits in a byte?
...we're talking about something that's simple to implement without copying a ready-made solution, creating the lookup table does still require another solution. (Of course one might do it by hand, but that's error-prone and time-consuming…)
– Arkku
Apr 8 '10 at...
What is the difference between ports 465 and 587?
...] 2017-12-12 [RFC8314]
If you are so inclined, you may wish to read the referenced RFC.
This seems to clearly imply that port 465 is the best way to force encrypted communication and be sure that it is in place. Port 587 offers no such guarantee.
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Default string initialization: NULL or Empty? [closed]
...tabase data types work. (Edit: This statement was very unclear. It should read "I use empty string for default initialization when NULL is a superfluous state, much in the same way I set up a database column as NOT NULL if NULL would be a superfluous state. Similarly, many of my DB columns are set...
What is a handle in C++?
...d in the winnt.h file in Visual Studio (Windows):
typedef void *HANDLE;
Read more about HANDLE
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Count the occurrences of DISTINCT values
... what is purpose is? It seems it should work with out it if you where just reading it plainly.
– James
Sep 19 '11 at 15:46
19
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How to get last inserted row ID from WordPress database?
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@unbreak - wrong function there ... you're reading about wpdb->insert( $table, $data, $format );
– jsnfwlr
Apr 29 '15 at 3:34
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What is `git diff --patience` for?
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You can read a post from Bram Cohen, the author of the patience diff algorithm, but I found this blog post to summarize the patience diff algorithm very well:
Patience Diff, instead, focuses its energy on the low-frequency high-cont...
Sorting data based on second column of a file
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also note that using -h instead of -n will sort human readable values like 2G or 3K as well as numbers separated with commas e.g. 1,234.5
– chillitom
Aug 29 '18 at 10:58
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Rails 3 execute custom sql query without a model
...ction may have to be returned to the connection pool afterwards to avoid threading issues: ActiveRecord::Base.connection_pool.checkin(connection) apidock.com/rails/ActiveRecord/ConnectionAdapters/…
– lee
Oct 4 '14 at 18:05
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