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How do I byte-compile everything in my .emacs.d directory?
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Search All Fields In All Tables For A Specific Value (Oracle)
...QL block and dynamic SQL. Here's some hastily-written code for that:
SET SERVEROUTPUT ON SIZE 100000
DECLARE
match_count INTEGER;
BEGIN
FOR t IN (SELECT owner, table_name, column_name
FROM all_tab_columns
WHERE owner <> 'SYS' and d...
ContinuousSpeech 连续语音识别扩展：持续语音识别无需重复启动 · App Inventor 2 中文网
...提示音 SoundEnabled
控制系统提示音的开关状态。设置为 false 可禁用识别开始和结束时的提示音。
版本 Version
返回扩展的版本号。
方法 Methods
启动 Start()
启动连续语音识别。识别器将持续运行，直到...
Python hashable dicts
As an exercise, and mostly for my own amusement, I'm implementing a backtracking packrat parser. The inspiration for this is i'd like to have a better idea about how hygenic macros would work in an algol-like language (as apposed to the syntax free lisp dialects you normally find them in). Because...
How do I set a column value to NULL in SQL Server Management Studio?
...y answered the question but just to cover all the bases:
Update myTable set MyColumn = NULL
This would set the entire column to null as the Question Title asks.
To set a specific row on a specific column to null use:
Update myTable set MyColumn = NULL where Field = Condition.
This would set...
How can we redirect a Java program console output to multiple files?
...
You can set the output of System.out programmatically by doing:
System.setOut(new PrintStream(new BufferedOutputStream(new FileOutputStream("/location/to/console.out")), true));
Edit:
Due to the fact that this solution is based o...
Align labels in form next to input
...labels have different length in different languages, thus I fear that that setting fixed width fill not work if the text is long.
– Azimuth
Apr 6 '18 at 12:16
...
A cron job for rails: best practices?
...on for each task. Implement the logic of the task as controller code, Then set up a cronjob at the OS level that uses wget to invoke the URL of this controller and action at the appropriate time intervals. The advantages of this method are you:
Have full access to all your Rails objects just as in...
Remove blank lines with grep
I tried grep -v '^$' in Linux and that didn't work. This file came from a Windows file system.
14 Answers
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How can I get dictionary key as variable directly in Python (not by searching from value)?
Sorry for this basic question but my searches on this are not turning up anything other than how to get a dictionary's key based on its value which I would prefer not to use as I simply want the text/name of the key and am worried that searching by value may end up returning 2 or more keys if the di...