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Will strlen be calculated multiple times if used in a loop condition?
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@Prætorian, good point on the zero length string. I didn't consider that case when I wrote my comment. Does C++ evaluate the i > 0 expression on initial loop entry? If it doesn't, then you're right, the zero length case will...
SQL exclude a column using SELECT * [except columnA] FROM tableA?
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If you drag from Object Explorer the Columns node for a table, it puts a CSV list of columns in the Query Window for you which achieves one of your goals
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Mac SQLite editor [closed]
...ty to load sqlite extensions.
SQLite 2 Compatibility.
Exporting options to CSV, JSON, XML and MySQL.
Importing from CSV, JSON or XML.
Column reordering.
Full screen support.
There is a seven day trial available via the website. If you purchase via our website, use the promo code STACK25 to save ...
Function pointers, Closures, and Lambda
...ct 16 '08 at 15:41
Jouni K. SeppänenJouni K. Seppänen
33.9k55 gold badges6767 silver badges9696 bronze badges
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How to find the Windows version from the PowerShell command line
...ws versions use systeminfo. Powershell wrapper:
PS C:\> systeminfo /fo csv | ConvertFrom-Csv | select OS*, System*, Hotfix* | Format-List
OS Name : Microsoft Windows 7 Enterprise
OS Version : 6.1.7601 Service Pack 1 Build 7601
OS Manufacturer : Microsoft Corporation
OS...
How to check if a process is running via a batch script
...ere's how I've worked it out:
tasklist /FI "IMAGENAME eq notepad.exe" /FO CSV > search.log
FOR /F %%A IN (search.log) DO IF %%~zA EQU 0 GOTO end
start notepad.exe
:end
del search.log
The above will open Notepad if it is not already running.
Edit: Note that this won't find applications hid...
Log all queries in mysql
...ediumtext NOT NULL,
`thread_id` bigint(21) unsigned NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='Slow log'
CREATE TABLE `general_log` (
`event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext NOT NU...
How can I merge properties of two JavaScript objects dynamically?
...and you would also want to merge the attributes.
– Xiè Jìléi
Oct 24 '10 at 10:56
72
This only ...
Reading an Excel file in PHP [closed]
...l file. If you want to import it into mysql, you could simply save it as a CSV formatted file and then use fgetcsv to parse it.
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For each row in an R dataframe
...nction is vectorized, then you can skip the loop and just use cat or write.csv:
write.csv(data.frame(wellid=getWellID(well$name, well$plate),
value1=well$value1, value2=well$value2), file=outputFile)
If getWellID() isn't vectorized, then Jonathan's recommendation of using by or knguyen'...