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How to change column datatype from character to numeric in PostgreSQL 8.4
...nding on your data):
alter table presales alter column code type numeric(10,0) using code::numeric;
-- Or if you prefer standard casting...
alter table presales alter column code type numeric(10,0) using cast(code as numeric);
This will fail if you have anything in code that cannot be cast to num...
How to iterate over associative arrays in Bash
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answered Jun 24 '10 at 19:31
Paused until further notice.Paused until further notice.
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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...al colour scale as follows:
#Some test data
dat <- data.frame(x=runif(10),y=runif(10),
grp = rep(LETTERS[1:5],each = 2),stringsAsFactors = TRUE)
#Create a custom color scale
library(RColorBrewer)
myColors <- brewer.pal(5,"Set1")
names(myColors) <- levels(dat$grp)
colScale <- sc...
Byte order mark screws up file reading in Java
...ile: UnicodeBOMInputStream.java
* Author: Gregory Pakosz.
* Date: 02 - November - 2005
* ____________________________________________________________________________
*/
package com.stackoverflow.answer;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackIn...
How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
...t)
– Kaushik Acharya
Nov 16 '16 at 10:46
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overlay two images in android to set an imageview
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Resources r = getResources();
Drawable[] layers = new Drawable[2];
layers[0] = r.getDrawable(R.drawable.t);
layers[1] = r.getDrawable(R.drawable.tt);
LayerDrawable layerDrawable = new LayerDrawable(layers);
testimage.setImageDrawable(layerDrawable);
(I haven't tested this code so there may be a m...
How to use conditional breakpoint in Eclipse?
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edited Feb 29 '12 at 6:06
answered Aug 25 '11 at 17:09
Z...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
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50
Not answering the specifics of your question so much as the title: the 2006 Technical Report on ...
Foreign Key to non-primary key
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190
If you really want to create a foreign key to a non-primary key, it MUST be a column that has a ...
How to concatenate two IEnumerable into a new IEnumerable?
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answered Jan 4 '13 at 21:07
Jon SkeetJon Skeet
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