The following table provides summary statistics for permanent job vacancies advertised in Harpenden with a requirement for SQL skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited SQL over the 3 months to 29 March 2017 with a comparison to the same period in the previous 2 years.

SQL (Structured Query Language)
Hertfordshire / Harpenden
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 8 1 1
Rank change year-on-year -7 0  
Permanent jobs citing SQL 9 26 6
As % of all permanent IT jobs advertised in Harpenden 25.71% 76.47% 75.00%
As % of the Programming Languages category 60.00% 100.00% 100.00%
Number of salaries quoted 9 26 6
Median salary £42,500 £36,250 £25,000
Median salary % change year-on-year +17.24% +45.00%  
UK excluding London median salary £40,000 £40,000 £40,000

SQL is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Harpenden with a requirement for programming language skills.

Programming Language Skills
Harpenden
Permanent job vacancies with a requirement for programming language skills 15 26 6
As % of all permanent IT job vacancies advertised in Harpenden 42.86% 76.47% 75.00%
Number of salaries quoted 15 26 6
Median salary £42,500 £57,500 £25,000
Median salary % change year-on-year -26.08% +130.00%  
UK excluding London median salary £41,000 £41,000 £40,000
% change year-on-year - +2.50%  

SQL
Job Vacancy Trend in Harpenden

The job posting trend of jobs advertised in Harpenden citing SQL as a proportion of all permanent or contract IT jobs with a match in the Programming Languages category.

Job vacancy trend for SQL in Harpenden

SQL
Salary Trend in Harpenden

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing SQL in Harpenden.

Salary trend for SQL in Harpenden

SQL
Salary Histogram in Harpenden

The salary distribution of IT jobs citing SQL in Harpenden over the 3 months to 29 March 2017.

Salary histogram for SQL in Harpenden

For the 6 months to 29 March 2017, IT jobs citing SQL also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Harpenden region with a requirement for SQL.

1 28 (87.50%) C#
1 28 (87.50%) .NET
2 27 (84.38%) MVC
3 26 (81.25%) HTML
3 26 (81.25%) .NET Framework
4 24 (75.00%) Multithreading
4 24 (75.00%) JavaScript
4 24 (75.00%) T-SQL
4 24 (75.00%) ASP.NET
5 22 (68.75%) HTML5
6 21 (65.63%) RabbitMQ
6 21 (65.63%) Entity Framework
6 21 (65.63%) MongoDB
7 20 (62.50%) ASP.NET MVC
7 20 (62.50%) jQuery
7 20 (62.50%) WCF
7 20 (62.50%) Ajax
8 18 (56.25%) RavenDB
8 18 (56.25%) NoSQL
8 18 (56.25%) SignalR
8 18 (56.25%) Twitter Bootstrap
9 13 (40.63%) TypeScript
10 9 (28.13%) AngularJS
11 8 (25.00%) Agile Software Development
11 8 (25.00%) Microsoft
11 8 (25.00%) PowerShell
12 7 (21.88%) RESTful
12 7 (21.88%) Subversion
12 7 (21.88%) SQL Server
12 7 (21.88%) CSS

SQL
Co-occurring IT Skills in Harpenden by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 3 (9.38%) IIS
2 1 (3.13%) NServiceBus
Cloud Services
1 5 (15.63%) SaaS
Communications & Networking
1 3 (9.38%) Wireshark
Database & Business Intelligence
1 21 (65.63%) MongoDB
2 18 (56.25%) NoSQL
2 18 (56.25%) RavenDB
3 7 (21.88%) SQL Server
4 3 (9.38%) MariaDB
Development Applications
1 7 (21.88%) Subversion
2 6 (18.75%) Fiddler
2 6 (18.75%) TeamCity
3 5 (15.63%) Selenium
4 3 (9.38%) Atlassian Bamboo
4 3 (9.38%) Jenkins
4 3 (9.38%) NUnit
4 3 (9.38%) Robot Framework
5 1 (3.13%) JIRA
Job Titles
1 28 (87.50%) Developer
2 26 (81.25%) .NET Developer
3 19 (59.38%) C# Developer
4 18 (56.25%) ASP.NET MVC Developer
5 17 (53.13%) C# .NET Developer
6 12 (37.50%) ASP.NET Developer
7 7 (21.88%) Senior C# Developer
7 7 (21.88%) Senior Developer
8 6 (18.75%) C# ASP.NET Developer
8 6 (18.75%) Senior .NET Developer
8 6 (18.75%) Senior C# .NET Developer
9 5 (15.63%) Angular Developer
10 4 (12.50%) Senior SQL Developer
10 4 (12.50%) SQL Developer
11 3 (9.38%) QA Leader
11 3 (9.38%) QA Manager
11 3 (9.38%) QA Test Manager
11 3 (9.38%) Test Automation Manager
11 3 (9.38%) Test Leader
11 3 (9.38%) Test Manager
Libraries, Frameworks & Software Standards
1 28 (87.50%) .NET
2 26 (81.25%) .NET Framework
2 26 (81.25%) HTML
3 24 (75.00%) ASP.NET
4 22 (68.75%) HTML5
5 21 (65.63%) Entity Framework
5 21 (65.63%) RabbitMQ
6 20 (62.50%) Ajax
6 20 (62.50%) ASP.NET MVC
6 20 (62.50%) jQuery
6 20 (62.50%) WCF
7 18 (56.25%) SignalR
7 18 (56.25%) Twitter Bootstrap
8 9 (28.13%) AngularJS
9 7 (21.88%) CSS
9 7 (21.88%) RESTful
10 6 (18.75%) Ninject
10 6 (18.75%) REST
11 5 (15.63%) SOAP
12 4 (12.50%) XML
Processes & Methodologies
1 27 (84.38%) MVC
2 24 (75.00%) Multithreading
3 8 (25.00%) Agile Software Development
4 4 (12.50%) BDD
4 4 (12.50%) Continuous Integration
4 4 (12.50%) Keyword-Driven Testing
4 4 (12.50%) Mobile Development
4 4 (12.50%) Scrum
4 4 (12.50%) SDLC
4 4 (12.50%) TDD
4 4 (12.50%) Test Automation
5 3 (9.38%) API Design
5 3 (9.38%) Automation Testing
5 3 (9.38%) Dependency Injection
5 3 (9.38%) DevOps
5 3 (9.38%) Software Engineering
5 3 (9.38%) Software Testing
5 3 (9.38%) Stakeholder Management
5 3 (9.38%) Unit Testing
6 1 (3.13%) CRM
Programming Languages
1 28 (87.50%) C#
2 24 (75.00%) JavaScript
2 24 (75.00%) T-SQL
3 13 (40.63%) TypeScript
4 8 (25.00%) PowerShell
Qualifications
1 4 (12.50%) ISEB
1 4 (12.50%) ISTQB
Quality Assurance & Compliance
1 6 (18.75%) QA
Vendors
1 8 (25.00%) Microsoft