The following table provides summary statistics for contract job vacancies advertised in 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 26 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
England / London
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 412 395 406
Rank change year-on-year -17 +11  
Contract jobs citing Star Schema 12 23 36
As % of all contract IT jobs advertised in London 0.058% 0.11% 0.15%
As % of the Database & Business Intelligence category 0.24% 0.47% 0.65%
Number of daily rates quoted 6 17 27
Median daily rate £494 £513 £413
Median daily rate % change year-on-year -3.65% +24.24%  
90% offered a daily rate of more than £405 £373 £386
10% offered a daily rate of more than £550 £610 £468
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 London with a requirement for database and business intelligence skills.

Contract Database & Business Intelligence Skills
London
Contract job vacancies with a requirement for database and business intelligence skills 4909 4882 5580
As % of all contract IT job vacancies advertised in London 23.65% 22.84% 23.90%
Number of daily rates quoted 3566 3612 3909
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 £365 £338 £300
10% offered a daily rate of more than £625 £625 £600
UK excluding London median daily rate £400 £383 £350
% change year-on-year +4.57% +9.28%  
Number of hourly rates quoted 28 19 51
Median hourly rate £24.66 £35.00 £27.78
Median hourly rate % change year-on-year -29.54% +25.98%  
90% offered a hourly rate of more than £21.50 £16.08 £16.55
10% offered a hourly rate of more than £40.98 £127.00 £55.00
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 London

The job posting trend of jobs advertised in 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 London

Star Schema
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Star Schema in London

Star Schema
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Star Schema in London over the 3 months to 26 June 2017.

Contractor daily rate histogram for Star Schema in London

Star Schema
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Star Schema in London.

Contractor hourly rate trend for Star Schema in London

Star Schema
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Star Schema within the London region over the 3 months to 26 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Croydon +3 4 £488 -
City of London -5 1 £375 -22.07% 1
Star Schema
England

For the 6 months to 26 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 London region with a requirement for Star Schema.

1 30 (90.91%) Data Warehouse
2 27 (81.82%) ETL
3 23 (69.70%) Business Intelligence
3 23 (69.70%) SQL
4 14 (42.42%) Agile Software Development
4 14 (42.42%) Analytics
5 13 (39.39%) Oracle
5 13 (39.39%) SQL Server
6 12 (36.36%) Data Modelling
7 11 (33.33%) Finance
8 10 (30.30%) Banking
8 10 (30.30%) Data Integration
9 9 (27.27%) Data Analysis
10 8 (24.24%) Microsoft Excel
10 8 (24.24%) SAS
10 8 (24.24%) Linux
10 8 (24.24%) Kimball Methodology
11 7 (21.21%) Data Quality
11 7 (21.21%) Analytical Skills
11 7 (21.21%) Cognos
12 6 (18.18%) Scrum
12 6 (18.18%) MicroStrategy
12 6 (18.18%) DataStage
12 6 (18.18%) Dimensional Modelling
12 6 (18.18%) SQL Server Integration Services
12 6 (18.18%) SQL Optimisation
13 5 (15.15%) Oracle Database
13 5 (15.15%) sed
13 5 (15.15%) Test Automation
13 5 (15.15%) R

Star Schema
Co-occurring IT Skills in 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:

Application Platforms
1 8 (24.24%) SAS
2 1 (3.03%) Apache Spark
2 1 (3.03%) Oracle Workflow
Applications
1 8 (24.24%) Microsoft Excel
2 3 (9.09%) S-PLUS
3 2 (6.06%) Microsoft Office
3 2 (6.06%) SPSS
Business Applications
1 1 (3.03%) Oracle Receivables
Cloud Services
1 2 (6.06%) Google Analytics
2 1 (3.03%) Microsoft Azure
Communications & Networking
1 1 (3.03%) Internet
Database & Business Intelligence
1 30 (90.91%) Data Warehouse
2 13 (39.39%) SQL Server
3 6 (18.18%) DataStage
3 6 (18.18%) SQL Server Integration Services
4 5 (15.15%) Oracle Database
4 5 (15.15%) PostgreSQL
4 5 (15.15%) SAS Enterprise Guide
5 4 (12.12%) Hadoop
5 4 (12.12%) QlikView
5 4 (12.12%) Relational Database
5 4 (12.12%) SQL Server 2012
5 4 (12.12%) SQL Server Analysis Services
6 3 (9.09%) Big Data
6 3 (9.09%) DB2
6 3 (9.09%) Oracle Database 11g
6 3 (9.09%) Oracle Reports
6 3 (9.09%) PowerCenter
7 2 (6.06%) Amazon Redshift
7 2 (6.06%) Enterprise Data Warehouse
7 2 (6.06%) Power BI
Development Applications
1 3 (9.09%) ERwin
1 3 (9.09%) Git (software)
1 3 (9.09%) PowerBuilder
1 3 (9.09%) Toad
2 2 (6.06%) Talend Open Studio
3 1 (3.03%) JIRA
3 1 (3.03%) SpecFlow
3 1 (3.03%) Subversion
3 1 (3.03%) Team Foundation Server
3 1 (3.03%) Visual Studio
General
1 11 (33.33%) Finance
2 10 (30.30%) Banking
3 4 (12.12%) Legal
4 3 (9.09%) Front Office
4 3 (9.09%) Investment Banking
4 3 (9.09%) Marketing
4 3 (9.09%) Retail
5 2 (6.06%) German Language
Job Titles
1 16 (48.48%) Developer
2 5 (15.15%) Analyst
2 5 (15.15%) Architect
2 5 (15.15%) Data Architect
2 5 (15.15%) Data Engineer
2 5 (15.15%) ETL Developer
3 4 (12.12%) Business Intelligence Developer
3 4 (12.12%) Data Warehouse Developer
4 3 (9.09%) Senior Data Engineer
4 3 (9.09%) SQL Analyst
4 3 (9.09%) SQL Developer
5 2 (6.06%) Business Intelligence Architect
5 2 (6.06%) Data Analyst
5 2 (6.06%) Data Warehouse Analyst
5 2 (6.06%) Data Warehouse Specialist
5 2 (6.06%) Information Analyst
5 2 (6.06%) Report Specialist
5 2 (6.06%) SQL Data Analyst
5 2 (6.06%) SSAS Developer
5 2 (6.06%) SSIS Developer
Libraries, Frameworks & Software Standards
1 5 (15.15%) REST
1 5 (15.15%) XML
2 2 (6.06%) MDX
Miscellaneous
1 7 (21.21%) Analytical Skills
2 3 (9.09%) Data Structures
2 3 (9.09%) Foreign Exchange (FX)
2 3 (9.09%) Management Information System
3 1 (3.03%) Computer Science
3 1 (3.03%) Greenfield Project
Operating Systems
1 8 (24.24%) Linux
2 5 (15.15%) Windows
Processes & Methodologies
1 27 (81.82%) ETL
2 23 (69.70%) Business Intelligence
3 14 (42.42%) Agile Software Development
3 14 (42.42%) Analytics
4 12 (36.36%) Data Modelling
5 10 (30.30%) Data Integration
6 9 (27.27%) Data Analysis
7 8 (24.24%) Kimball Methodology
8 6 (18.18%) Dimensional Modelling
8 6 (18.18%) Scrum
8 6 (18.18%) SQL Optimisation
9 5 (15.15%) Migration
9 5 (15.15%) Test Automation
9 5 (15.15%) Validation
10 4 (12.12%) Continuous Integration
10 4 (12.12%) Data Migration
11 3 (9.09%) Data Architecture
11 3 (9.09%) Data Governance
11 3 (9.09%) Data Management
11 3 (9.09%) Stakeholder Management
Programming Languages
1 23 (69.70%) SQL
2 5 (15.15%) AWK
2 5 (15.15%) PowerShell
2 5 (15.15%) R
2 5 (15.15%) SAS Macro
2 5 (15.15%) sed
2 5 (15.15%) VBScript
3 4 (12.12%) PL/SQL
3 4 (12.12%) T-SQL
4 3 (9.09%) MATLAB
5 1 (3.03%) C
5 1 (3.03%) Data Analysis Expressions (DAX)
5 1 (3.03%) Python
Qualifications
1 5 (15.15%) SC Cleared
1 5 (15.15%) Security Cleared
2 1 (3.03%) Degree
Quality Assurance & Compliance
1 7 (21.21%) Data Quality
Systems Management
1 1 (3.03%) Oracle EDQ
Vendors
1 13 (39.39%) Oracle
2 7 (21.21%) Cognos
3 6 (18.18%) MicroStrategy
4 5 (15.15%) Greenplum
5 3 (9.09%) IBM
5 3 (9.09%) Informatica
5 3 (9.09%) Lavastorm
5 3 (9.09%) Tableau
5 3 (9.09%) Teradata
6 2 (6.06%) Google
6 2 (6.06%) Microsoft
6 2 (6.06%) Talend
7 1 (3.03%) Netezza
7 1 (3.03%) Salesforce.com
7 1 (3.03%) SAP