About Me



I am a Lebanese Researcher and Data Engineer that holds two Masters degrees in Business Computing and Computer Science and Risk Management.

 I have experience in developing business intelligence solutions, enterprise applications using Microsoft technologies. My experience includes solving complicated problems and I am determined to focus on data warehousing, database management, and optimizing.

 I am familiar with different programming languages such as C#, VB.NET, VBA, SQL, T-SQL, PL-SQL, and Python.

 I worked with different database management systems such as SQL Server, Oracle, MySQL, SQLite, Microsoft Access, InfluxDB, Cassandra.

 I have good experience in Microsoft business Intelligence tools such as SSIS, SSRS, SSAS, and PowerBI. 

 I am familiar with Big Data technologies such as Hadoop, Kafka, Spark, Flume, Sqoop, Zookeeper.

 I spend my spare time on answering questions and solving programming problems on “Stackoverflow.com” Q&A website and I am one of the two top answerers in ETL and SSIS. 

 I have many contributions to open source projects.

 I have written several articles related to information technology on Medium.com

Popular posts from this blog

SSIS - Script Task error: Exception has been thrown by the target of an invocation.

Question: When i execute the SSIS package the Script Task throws the following exception: Exception has been thrown by the target of an invocation. at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) at Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTATaskScriptingEngine.ExecuteScript() Which is meaningless. How can i read the real error message? Answer: Exception has been thrown by the target of an invocation. Is an general exception that is thrown by Script T...
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Don’t install Hadoop on Windows!

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A few years ago, I was hearing from my colleagues “don’t ever think about installing Hadoop on Windows operating system!” . I was not convinced of this saying because I am a big fan of Microsoft products, especially Windows. In the past three years, I worked on three projects where I was asked to build a Hadoop cluster on Ubuntu. The first time, it was a single-node Hadoop installation with a single Apache Spark worker. The other projects were about building a Big Data ecosystem for radiation data engineering , where the multi-node Hadoop cluster is deployed. Besides Hadoop, we installed and configured Apache Kafka, Spark, Hive, Pig, and Flume installations (I have published some installation guides previously, you can check the links at the end of this article). It was hard to become familiar with those technologies for the first time since they don’t have much documentation online. Each time I had to install Hadoop, I was thinking that why always Hadoop is installed on Linu...
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SSIS - script component DateTime Formats Implicit Conversion

General Info These are the default formats of datetimes datatypes (when converting from string) DT_DBDATE yyyy-mm-dd DT_FILETIME yyyy-mm-dd hh:mm:ss:fff DT_DBTIME hh:mm:ss DT_DBTIME2 hh:mm:ss[.fffffff] DT_DBTIMESTAMP yyyy-mm-dd hh:mm:ss[.fff] DT_DBTIMESTAMP2 yyyy-mm-dd hh:mm:ss[.fffffff] DT_DBTIMESTAMPOFFSET yyyy-mm-dd hh:mm:ss[.fffffff] [{+|-} hh:mm] Note: DT_DATE and DT_DBTIMESTAMP has the same SET method And i think that converting string to date is depending also on your current culture info More detailed information are found here https://msdn.microsoft.com/en-us/library/ms141036.aspx http://www.bidn.com/blogs/DevinKnight/ssis/1387/ssis-to-sql-server-data-type-translations Experiments : I didn't find any related article on this issue so i made the following experiments: SSIS Implicit datetime Conversion i created a SSIS package with a Dataflowtask. in this dataflowtask i created a Script Component (as a Source) and a Flat File Destin...
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