The table below looks at the statistics for ERD skills in IT jobs advertised for the City of London region. Included is a guide to the salaries offered in IT jobs that have cited ERD over the 3 months to 18 January 2017 with a comparison to the same period over the previous 2 years.

3 months to
18 Jan 2017
Same period 2016 Same period 2015
Entity-Relationship Diagram (ER Diagram)
London / City of London
Rank - 239 302
Permanent jobs citing ERD 0 12 9
As % of all permanent IT jobs located in the City of London - 0.19% 0.090%
As % of the Processes & Methodologies category - 0.21% 0.10%
Number of salaries quoted 0 11 8
Median salary - £46,500 £70,000
Median salary % change year-on-year
- -33.57%
UK excluding London median salary £50,000 £39,750 £40,000
% change year-on-year
+25.78% -0.62%

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in permanent jobs advertised in the City of London region.

Processes & Methodologies Category
City of London
Permanent IT job ads with a match in the
Processes & Methodologies category
4391 5719 8575
As % of all permanent IT jobs located in the City of London 87.75% 88.61% 85.48%
Number of salaries quoted 3968 5108 7430
Median salary £60,000 £60,000 £57,500
Median salary % change year-on-year
- +4.34%
90% offered a salary of more than £40,000 £42,500 £38,500
10% offered a salary of more than £90,000 £82,500 £87,500
UK excluding London median salary £45,000 £45,000 £42,500
% change year-on-year
- +5.88%

ERD
Jobs Demand Trend in the City of London

The demand trend of job ads across the City of London region citing ERD as a proportion of all IT jobs with a match in the Processes & Methodologies category.

ERD Jobs Demand Trend in the City of London

ERD
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ERD across the City of London region.

ERD Salary Trend in the City of London

ERD
Top 30 Related IT Skills in the City of London

For the 6 months to 18 January 2017, IT jobs citing ERD 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 City of London region with a requirement for ERD.

1 10 (100.00%) UML
1 10 (100.00%) Data Modelling
1 10 (100.00%) ETL
2 9 (90.00%) Business Intelligence
2 9 (90.00%) OCP
2 9 (90.00%) Oracle Certification
2 9 (90.00%) Legal
2 9 (90.00%) Replication
2 9 (90.00%) OOP
2 9 (90.00%) OO
2 9 (90.00%) SQL
2 9 (90.00%) T-SQL
2 9 (90.00%) Oracle
2 9 (90.00%) SQL Server
2 9 (90.00%) Agile Software Development
2 9 (90.00%) SQL Server Reporting Services
2 9 (90.00%) SQL Server Integration Services
2 9 (90.00%) Statistics
2 9 (90.00%) SQL Server Analysis Services
2 9 (90.00%) Open Source
2 9 (90.00%) Waterfall
2 9 (90.00%) Database Security
2 9 (90.00%) Performance Tuning
2 9 (90.00%) Database Mirroring
2 9 (90.00%) SDLC
2 9 (90.00%) High Availability
2 9 (90.00%) Unix
2 9 (90.00%) Failover Clustering
3 6 (60.00%) SQL Server 2012
3 6 (60.00%) SQL Server 2008

ERD
Top Related IT Skills in the City of London 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:

Database & Business Intelligence
1 9 (90.00%) SQL Server
1 9 (90.00%) SQL Server Analysis Services
1 9 (90.00%) SQL Server Integration Services
1 9 (90.00%) SQL Server Reporting Services
2 6 (60.00%) SQL Server 2005
2 6 (60.00%) SQL Server 2008
2 6 (60.00%) SQL Server 2012
3 3 (30.00%) MySQL
3 3 (30.00%) NoSQL
General
1 9 (90.00%) Legal
2 1 (10.00%) Retail
Job Titles
1 9 (90.00%) DBA
1 9 (90.00%) SQL DBA
2 6 (60.00%) Development DBA
2 6 (60.00%) Production DBA
3 3 (30.00%) MySQL DBA
4 1 (10.00%) Data Modeller
Libraries, Frameworks & Software Standards
1 1 (10.00%) Middleware
1 1 (10.00%) REST
1 1 (10.00%) SOAP
Miscellaneous
1 9 (90.00%) Replication
1 9 (90.00%) Statistics
Operating Systems
1 9 (90.00%) Unix
Processes & Methodologies
1 10 (100.00%) Data Modelling
1 10 (100.00%) ETL
1 10 (100.00%) UML
2 9 (90.00%) Agile Software Development
2 9 (90.00%) Business Intelligence
2 9 (90.00%) Database Mirroring
2 9 (90.00%) Database Security
2 9 (90.00%) High Availability
2 9 (90.00%) OO
2 9 (90.00%) OOP
2 9 (90.00%) Open Source
2 9 (90.00%) Performance Tuning
2 9 (90.00%) SDLC
2 9 (90.00%) Waterfall
3 1 (10.00%) Enterprise Architecture
3 1 (10.00%) Event-Driven Architecture
3 1 (10.00%) Service Design
3 1 (10.00%) SOA
Programming Languages
1 9 (90.00%) SQL
1 9 (90.00%) T-SQL
2 3 (30.00%) PowerShell
Qualifications
1 9 (90.00%) OCP
1 9 (90.00%) Oracle Certification
Systems Management
1 9 (90.00%) Failover Clustering
Vendors
1 9 (90.00%) Oracle