yingqin

Load data to Azure Data Lake Store with high throughput

In general, a suggested way is to leverage Azure Data Factory to copy data from/to Azure Data Lake...

Author: Yingqin Date: 12/28/2015

Column mappings in SqlBulkCopy are case sensitive

When you use SqlBulkCopy and set the ColumnMappings property, the column names are case sensitive...

Author: Yingqin Date: 07/15/2015

Be Careful when using Table-Valued Parameter

Recently we found two implicit traps when using Table-Valued Parameter, which may easily lead to...

Author: Yingqin Date: 05/27/2015

Build warning msb3247 and msb3276 and msb3277

Frequently we may meet build warnings if a project indirectly reference same assembly with different...

Author: Yingqin Date: 02/13/2015

Use PsTools to view certificate installed by System account

If you want to view certificates installed by System account in an Azure VM, directly remote to the...

Author: Yingqin Date: 01/26/2015

Use Data-Driven Test for Parameterized Tests

In daily development, we usually have a requirement to write paramterized test cases. I used to use...

Author: Yingqin Date: 11/06/2014

A quite efficient compression algorithm: Blosc

Recently I just learnt about a new compression algorithm Blosc (http://www.blosc.org/trac). It has...

Author: Yingqin Date: 05/29/2014

Preliminary findings to get good performance of SqlBulkCopy

We want to develop a C# application which needs load data into local DB quickly, and found the...

Author: Yingqin Date: 02/27/2014

Study Notes of "Pattern-Oriented Design"

Here are the study notes of my recently attended training "Pattern-Oriented Design". The lecturer is...

Author: Yingqin Date: 12/22/2013

Azure Storage Blobs: the API DownloadToStream is always faster than OpenRead

An interesting finding when using the Azure Storage is that the API ICloudBlob.DownloadToStream is...

Author: Yingqin Date: 12/19/2013

Cancellation over .Net 4.0

To implement cancellation over .Net 4.0 is kind of convenient. See the following articles for...

Author: Yingqin Date: 07/09/2013

Integrate native C++ project with managed C# projects

Scenario: recently our team need to use a compression algorithm which is implemented in native C++...

Author: Yingqin Date: 03/13/2013