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Bulk insert with SQLAlchemy ORM
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Compared to inserting the same data from CSV with \copy with psql (from the same client to the same server), I see a huge difference in performance on the server side resulting in about 10x more inserts/s. Apparently is bulk-loading using \copy (or COPY on the serve...
Serializing a list to JSON
...... stack, which provides a set of very fast serializers for Json, JSV and CSV.
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What is the recommended batch size for SqlBulkCopy?
...so spent some time looking into. I am looking to optimize importing large CSV files (16+ GB, 65+ million records, and growing) into a SQL Server 2005 database using a C# console application (.Net 2.0). As Jeremy has already pointed out, you will need to do some fine-tuning for your particular circ...
Python strptime() and timezones?
I have a CSV dumpfile from a Blackberry IPD backup, created using IPDDump.
The date/time strings in here look something like this
(where EST is an Australian time-zone):
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Reading a file line by line in Go
...ver a file, it would be trivial to first file, _ := os.Open("/path/to/file.csv") and then scan over the file handle: scanner := bufio.NewScanner(file)
– Evan Plumlee
Aug 18 '13 at 13:28
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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...pp Inventor 不包含复制文件的操作。幸运的是，由于 Taifun Bär（谢谢 Taifun！），有一个 App Inventor 扩展，它提供了一个带有 TaifunFile.copy 操作的组件 TaifunFile。可以从此处下载扩展。您应该在构建 Expeditions 和 Virtuality 演示之前安装...
Performance of foreach, array_map with lambda and array_map with static function
...ted Apr 2 '15 at 12:54
Michael Härtl
7,84455 gold badges2727 silver badges5353 bronze badges
answered Nov 8 '13 at 14:26
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Downloading a large file using curl
...URLOPT_RETURNTRANSFER has to be true in case you are getting file like pdf/csv/image etc.
You may find the further detail over here(correct url) Curl Doc
From that page:
curl_setopt($request, CURLOPT_TIMEOUT, 300); //set timeout to 5 mins
curl_setopt($request, CURLOPT_RETURNTRANSFER, true); // t...
How do I add files without dots in them (all extension-less files) to the gitignore file?
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In my folders there are lots of files with *.c, *.h, *.txt, *.csv etc. extensions and binary files without any extension. So I needed to ignore all files execpt *.c,*.h and .gitignore, So this works for me, from the .gitignore example:
*/* #ignore all files in each directory
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REST / SOAP endpoints for a WCF service
...e it hosted on many different endpoints (i.e. SOAP + REST, with XML, JSON, CSV, HTML outputes). You should also consider using ServiceStack which I've built for exactly this purpose where every service you develop is automatically available on on both SOAP and REST endpoints out-of-the-box without a...