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How to 'insert if not exists' in MySQL?
...:
repeated executions of the pipeline will not destroy our
database
repeated executions will not die due to ‘duplicate
primary key’ errors.
Method 1: using REPLACE
It’s very simple:
REPLACE INTO `transcripts`
SET `ensembl_transcript_id` = 'ENSORGT00000000001',
`tr...
Why does only the first line of this Windows batch file execute but all three lines execute in a com
...following way:
call mvn install:install-file -DgroupId=gdata -DartifactId=base -Dversion=1.0 -Dfile=gdata-base-1.0.jar -Dpackaging=jar -DgeneratePom=true
call mvn install:install-file -DgroupId=gdata -DartifactId=blogger -Dversion=2.0 -Dfile=gdata-blogger-2.0.jar -Dpackaging=jar -DgeneratePom=tru...
Difference between .keystore file and .jks file
...eyStore class and related API to make use of a keystore (whether it's file based or not). JKS is a Java-specific file format, but the API can also be used with other file types, typically PKCS#12. When you want to load a keystore, you must specify its keystore type. The conventional extensions would...
Determine if two rectangles overlap each other?
...>=.
Note 3: This answer, when utilizing Cartesian coordinates (X, Y) is based on standard algebraic Cartesian coordinates (x increases left to right, and Y increases bottom to top). Obviously, where a computer system might mechanize screen coordinates differently, (e.g., increasing Y from top to ...
Where do you include the jQuery library from? Google JSAPI? CDN?
...
I respectfully disagree, based on your stated reason. If you get a lot of traffic then the 18k per session can quickly add up to a sizable amount of traffic. Especially if your web hosting charges by the bandwidth used...
– Ds...
delete map[key] in go?
... That crashes unless the key is present. I've added another solution based on your idea.
– user181548
Nov 18 '09 at 6:22
1
...
Change x axes scale in matplotlib
...icker.ScalarFormatter(useOffset=True,
useMathText=False, useLocale=None) Bases: matplotlib.ticker.Formatter
Tick location is a plain old number. If useOffset==True and the data
range is much smaller than the data average, then an offset will be
determined such that the tick labels are mea...
Why is DarkGray lighter than Gray?
...browsers such as Mosaic also supported any of the other X11 named colours, based on their colour representation as defined on X. Unfortunately, some of the original sixteen named colours have different representations to the X11 equivalents, for example Green is represented in X11 in this colour, wh...
how can I see what ports mongo is listening on from mongo shell?
...m the config file (parsed) and you can infer the ports mongod is listening based on that information. Here's an example:
db.serverCmdLineOpts()
{
"argv" : [
"./mongod",
"-replSet",
"test",
"--rest",
"--dbpath",
"/data/test/r1",
"--port",
...
What is Dispatcher Servlet in Spring?
... Do we need a Dispatcher Servlet xml file when using Annotation Based @RestController ?
– viper
Jun 13 '16 at 9:47
1
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