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Getting started with F# [closed]
...t). (contains interactive tutorial walkthroughs)
Start by watching videos and presentations (BTW, An Introduction to Microsoft F# by Luca Bolognese is still one of the best presentations on the subject). Then read the following two must-read books:
Programming F#: A comprehensive guide for writin...
How do you embed binary data in XML?
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You could encode the binary data using base64 and put it into a Base64 element; the below article is a pretty good one on the subject.
Handling Binary Data in XML Documents
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How to permanently set $PATH on Linux/Unix? [closed]
... session. In case of the shell script you must use a specific shell syntax and export or set commands.
System wide
/etc/environment List of unique assignments, allows references. Perfect for adding system-wide directories like /usr/local/something/bin to PATH variable or defining JAVA_HOME. Used ...
Delete column from SQLite table
...xample, suppose you have a table named "t1" with columns names
"a", "b", and "c" and that you want to delete column "c" from this
table. The following steps illustrate how this could be done:
BEGIN TRANSACTION;
CREATE TEMPORARY TABLE t1_backup(a,b);
INSERT INTO t1_backup SELECT a,b FROM t1;
DRO...
Decimal precision and scale in EF Code First
... changes, from EF 4.1 onwards the ModelBuilder class is now DbModelBuilder and there is now a DecimalPropertyConfiguration.HasPrecision Method which has a signature of:
public DecimalPropertyConfiguration HasPrecision(
byte precision,
byte scale )
where precision is the total number of digits the...
Oracle TNS names not showing when adding new connection to SQL Developer
...RACLE\ORACLE_HOME
To see which one SQL Developer is using, issue the command show tns in the worksheet
If your tnsnames.ora file is not getting recognized, use the following procedure:
Define an environmental variable called TNS_ADMIN to point to the folder that contains your tnsnames.ora file....
PHP Fatal error: Call to undefined function json_decode()
...t silly. Nevertheless Debian has removed the non-compliant JSON extension, and instead offered a replacement extension that is functionally equivalent.
To be clear: PHP itself has NOT removed JSON, it's still in master. This is a distro / package manager issue.
Rasmus makes it pretty clear:
We...
How to read contacts on Android 2.0
I'm working on Android 2.0 and am trying to receive a list of all contacts.
9 Answers
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How do I close all open tabs at once?
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Shortest/simplest/fastest way would be:
:qa
To save work in all tabs and quit:
:wqa
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How to serialize SqlAlchemy result to JSON?
... {}
for field in [x for x in dir(obj) if not x.startswith('_') and x != 'metadata']:
data = obj.__getattribute__(field)
try:
json.dumps(data) # this will fail on non-encodable values, like other classes
fields[field]...