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Difference between 2 dates in SQLite
...julianday('now') - julianday(DateCreated) FROM Payment;
This is what the top-ranked answer has, and is also in the documentation. It is only part of the picture, and a very simplistic answer, if you ask me.
If your dates are stored in local time, using the above code will make your answer WRONG ...
add column to mysql table if it does not exist
...
-- add fields to template table to support ignoring extra data
-- at the top/bottom of every page
CALL addFieldIfNotExists ('template', 'firstPageHeaderEndY', 'INT NOT NULL DEFAULT 0');
CALL addFieldIfNotExists ('template', 'pageHeaderEndY', 'INT NOT NULL DEFAULT 0');
CALL addFieldIfNotExists ('te...
How to make a Java class that implements one interface with two generic types?
....consume(tomato);
To summarize you can define 2 generic consumers in one top-level class using 2 inner classes but in case of calling you need to get first a reference to appropriate implementing consumer as this cannot be simply one consumer object.
...
Use JNI instead of JNA to call native code?
... is incompatible with LGPL.
That is only what I can come up with off the top of my head, though I am not a heavy user of either. It also seems like you might avoid JNA if you wanted a better interface than the one they provide but you could code around that in java.
...
Is asynchronous jdbc call possible?
...gine it would be possible to build an async event driven database layer on top of the JDBC api but we'd have to encapsulate the whole JDBC behind an event driven facade, and that facade wouldn't look like JDBC (after it would be event driven). The database processing would happen async on a differe...
Typedef function pointer?
...nts another wrapper around functions without C++11
– Top-Master
Mar 11 '19 at 4:25
add a comm...
How to export plots from matplotlib with transparent background?
... showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg cla...
Shorten string without cutting words in JavaScript
...fix for this (maxLength + 1), but I fixed it by simply adding this line up top: var yourString += " ";
– tylerl
Aug 14 '14 at 19:24
3
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Display current date and time without punctuation
...
Here you go:
date +%Y%m%d%H%M%S
As man date says near the top, you can use the date command like this:
date [OPTION]... [+FORMAT]
That is, you can give it a format parameter, starting with a +.
You can probably guess the meaning of the formatting symbols I used:
%Y is for ye...
Average of 3 long integers
...a signed average.
To compute the unsigned average, compute the sum of the top 32 bits of the three values. Then compute the sum of the bottom 32 bits of the three values, plus the sum from above, plus one [the plus one is to yield a rounded result]. The average will be 0x55555555 times the first ...