The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Star Schema skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Star Schema over the 3 months to 25 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Star Schema
London / City of London
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 162 164 194
Rank change year-on-year +2 +30  
Contract jobs citing Star Schema 1 2 8
As % of all contract IT jobs advertised in the City of London 0.031% 0.060% 0.14%
As % of the Database & Business Intelligence category 0.12% 0.25% 0.54%
Number of daily rates quoted 1 2 8
Median daily rate £375 £481 £419
Median daily rate % change year-on-year -22.07% +14.92%  
UK excluding London median daily rate £375 £413 £250
% change year-on-year -9.09% +65.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - £57.75

Star Schema is in the database and business intelligence skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
City of London
Contract job vacancies with a requirement for database and business intelligence skills 849 804 1491
As % of all contract IT job vacancies advertised in the City of London 25.92% 24.20% 25.61%
Number of daily rates quoted 667 641 1186
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £384 £338 £325
10% offered a daily rate of more than £650 £625 £600
UK excluding London median daily rate £400 £383 £350
% change year-on-year +4.57% +9.28%  
Number of hourly rates quoted 2 4 7
Median hourly rate £21.50 £17.88 £30.00
Median hourly rate % change year-on-year +20.27% -40.41%  
UK excluding London median hourly rate £38.00 £30.50 £26.00
% change year-on-year +24.59% +17.30%  

Star Schema
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Star Schema as a proportion of all contract or permanent IT jobs with a match in the Database & Business Intelligence category.

Job vacancy trend for Star Schema in the City of London

Star Schema
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Star Schema in the City of London.

Contractor daily rate trend for Star Schema in the City of London

For the 6 months to 25 June 2017, IT contractor jobs citing Star Schema also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for Star Schema.

1 2 (100.00%) Data Warehouse
1 2 (100.00%) SQL
2 1 (50.00%) SQL Server
2 1 (50.00%) Data Modelling
2 1 (50.00%) Toad
2 1 (50.00%) Business Intelligence
2 1 (50.00%) Foreign Exchange (FX)
2 1 (50.00%) PowerBuilder
2 1 (50.00%) ERwin
2 1 (50.00%) Workflow
2 1 (50.00%) SQL Server Integration Services
2 1 (50.00%) Visualisation
2 1 (50.00%) Tableau
2 1 (50.00%) Kimball Methodology

Star Schema
Co-occurring 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 2 (100.00%) Data Warehouse
2 1 (50.00%) SQL Server
2 1 (50.00%) SQL Server Integration Services
Development Applications
1 1 (50.00%) ERwin
1 1 (50.00%) PowerBuilder
1 1 (50.00%) Toad
Job Titles
1 2 (100.00%) Developer
2 1 (50.00%) Data Warehouse Developer
2 1 (50.00%) SQL Developer
2 1 (50.00%) Tableau Developer
Miscellaneous
1 1 (50.00%) Foreign Exchange (FX)
Processes & Methodologies
1 1 (50.00%) Business Intelligence
1 1 (50.00%) Data Modelling
1 1 (50.00%) Kimball Methodology
1 1 (50.00%) Visualisation
1 1 (50.00%) Workflow
Programming Languages
1 2 (100.00%) SQL
Vendors
1 1 (50.00%) Tableau