scalac compile yields “object apache is not a member of package org”
My code is:import org.apache.spark.SparkContext It can run in interactive mode, but when I use scalac to compile it, I got the following error…
1 Answer · 1.5K Views · Answered ✓
Get a modern-day SQL Developer Training that will help you learn the basics of database querying, Microsoft SQL and the best-practices of Database Management to gain confidence with our Online SQL Certification and surmount a trending career field
My code is:import org.apache.spark.SparkContext It can run in interactive mode, but when I use scalac to compile it, I got the following error…
1 Answer · 1.5K Views · Answered ✓
I have a long R script that throws some warnings, which I can ignore. I could usesuppressWarnings(expr)for single statements. But how can I suppress…
1 Answer · 1.3K Views · Answered ✓
I have a remote gitosis server and a local git repository, and each time I make a big change in my code, I'll push the changes to that server too.But…
1 Answer · 2.2K Views · Answered ✓
What's the difference between RANK() and DENSE_RANK() functions? How to find out nth salary in the following emptbl table?DEPTNO EMPNAME…
1 Answer · 1.4K Views · Answered ✓
I am using MySQL. Here is my schema:Suppliers(sid: integer, sname: string, address string)Parts(pid: integer, pname: string, color:…
1 Answer · 1.7K Views · Answered ✓
You are mixing mysql and mysqli Change these lines: $sql = mysql_query("SELECT * FROM login WHERE username = '".$_POST['username']."' and password =…
1 Answer · 994 Views · Answered ✓
Currently I am working on this code:customer_telno = customer.find('div', 'customer_phone_number')customer_telno = '' if customer_telno is None else…
2 Answers · 5.2K Views · Answered ✓
Recently I had downloaded the MySQL Workbench 6.1 on the Windows 7 operating system and now I need to start it and do a simple DB. I set up a new…
1 Answer · 6.3K Views · Answered ✓
I can't get my MySQL to start on os x 10.7. It is located in /usr/local/mysql/bin/mysql.I'm getting the command as not found when I execute mysql…
1 Answer · 1.3K Views · Answered ✓
I'm trying to set up some selenium tests to our staging server using Sauce Labs. It's behind a basic HTTP auth, so theoretically I could set the…
1 Answer · 2.9K Views · Answered ✓
All of the syntax is valid PostgreSQL as an example of an UPSERT that returns the old and new values for the field. Let's say I have a table foo with…
1 Answer · 810 Views · Answered ✓
For troubleshooting purposes, I would like to be able to check if a client can connect to a SQL Server instance, independent of the application that…
1 Answer · 2.1K Views · Answered ✓
Free tutorials and interview questions from industry experts — learn the skill, then get ready to prove it.
Step-by-step SQL Server guides from industry experts
Common SQL Server interview questions, answered
Guides, tips and career advice on SQL Server from JanBask experts.
SQL Server Top 75 SSAS Interview Questions and Answers For Beginners & Experts
Prepare for your SSAS interview with our comprehensive guide featuring 75 top SQL Server Analysis Services interview questions…
SQL Server How to Become a SQL Database Administrator?
How to become a sql database administrator In 2025, discover what these professionals do, explore how much they earn and learn…
SQL Server OLAP vs OLTP: Key Differences, Architectures, Performance & Real-World Examples
Compare OLTP vs OLAP with clear definitions, architecture diagrams, real-world examples, and FAQs. Learn when to use each system…
SQL Server 70+ Most Asked SSIS Interview Questions for Freshers & Experienced
Prepare for your next SQL Server Integration Services (SSIS) interview with our top 70+ SSIS interview questions and answers.…
Pick another topic to find answers, interview questions, and real-world tips.