The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for RDBMS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited RDBMS over the 3 months to 29 April 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.

Relational Database Management System (RDBMS)
London / City of London
3 months to
29 Apr 2017
Same period 2016 Same period 2015
Rank 143 126 148
Rank change year-on-year -17 +22  
Contract jobs citing RDBMS 23 30 50
As % of all contract IT jobs advertised in the City of London 0.71% 0.86% 0.91%
As % of the Database & Business Intelligence category 2.61% 3.44% 3.57%
Number of daily rates quoted 13 26 40
Median daily rate £513 £575 £500
Median daily rate % change year-on-year -10.86% +15.00%  
90% offered a daily rate of more than £400 £475 £373
10% offered a daily rate of more than £545 £588 £625
UK excluding London median daily rate £375 £380 £388
% change year-on-year -1.31% -1.93%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £23.25 £42.25 £46.09
% change year-on-year -44.97% -8.33%  

RDBMS 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 880 871 1400
As % of all contract IT job vacancies advertised in the City of London 27.00% 24.95% 25.59%
Number of daily rates quoted 688 711 1113
Median daily rate £500 £485 £450
Median daily rate % change year-on-year +3.09% +7.77%  
90% offered a daily rate of more than £350 £350 £325
10% offered a daily rate of more than £625 £600 £600
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 1 8 6
Median hourly rate £22.34 £19.00 £45.00
Median hourly rate % change year-on-year +17.55% -57.77%  
UK excluding London median hourly rate £31.00 £32.50 £32.10
% change year-on-year -4.61% +1.24%  

RDBMS
Job Vacancy Trend in the City of London

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

Job vacancy trend for RDBMS in the City of London

RDBMS
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 RDBMS in the City of London.

Contractor daily rate trend for RDBMS in the City of London

RDBMS
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing RDBMS in the City of London over the 3 months to 29 April 2017.

Contractor daily rate histogram for RDBMS in the City of London

RDBMS
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for RDBMS in the City of London

For the 6 months to 29 April 2017, IT contractor jobs citing RDBMS 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 RDBMS.

1 43 (100.00%) Relational Database
2 21 (48.84%) SQL
3 16 (37.21%) Java
3 16 (37.21%) Oracle
4 14 (32.56%) Finance
5 13 (30.23%) Agile Software Development
5 13 (30.23%) SQL Server
6 12 (27.91%) Linux
6 12 (27.91%) Banking
7 10 (23.26%) Data Management
7 10 (23.26%) Change Management
8 9 (20.93%) Python
9 8 (18.60%) Sybase
9 8 (18.60%) ETL
9 8 (18.60%) Jenkins
10 7 (16.28%) Analytics
10 7 (16.28%) Data Quality
10 7 (16.28%) Equities
10 7 (16.28%) Data Acquisition
11 6 (13.95%) Continuous Delivery
11 6 (13.95%) Data Modelling
11 6 (13.95%) Microsoft
11 6 (13.95%) DevOps
11 6 (13.95%) Continuous Integration
11 6 (13.95%) Git (software)
12 5 (11.63%) Investment Management
12 5 (11.63%) Amazon AWS
12 5 (11.63%) Hadoop
12 5 (11.63%) REST
12 5 (11.63%) Big Data

RDBMS
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:

Application Platforms
1 3 (6.98%) Apache
1 3 (6.98%) Apache Pig
2 2 (4.65%) Apache Spark
2 2 (4.65%) IIS
2 2 (4.65%) LiveCycle
2 2 (4.65%) WebSphere
3 1 (2.33%) Confluence
3 1 (2.33%) Jupyter
3 1 (2.33%) MQSeries
3 1 (2.33%) SAS
Applications
1 1 (2.33%) Microsoft Excel
1 1 (2.33%) Microsoft Office
1 1 (2.33%) SPSS
Business Applications
1 4 (9.30%) Eagle PACE
1 4 (9.30%) Markit EDM
Cloud Services
1 5 (11.63%) Amazon AWS
2 2 (4.65%) GitHub
3 1 (2.33%) Microsoft Azure
Communications & Networking
1 3 (6.98%) SSL
2 2 (4.65%) HTTP
3 1 (2.33%) DHCP
3 1 (2.33%) DNS
3 1 (2.33%) FTP
3 1 (2.33%) IPsec
3 1 (2.33%) TCP/IP
Database & Business Intelligence
1 43 (100.00%) Relational Database
2 13 (30.23%) SQL Server
3 5 (11.63%) Big Data
3 5 (11.63%) Hadoop
4 4 (9.30%) Apache Hive
4 4 (9.30%) NoSQL
5 3 (6.98%) Data Warehouse
5 3 (6.98%) MongoDB
5 3 (6.98%) Oracle Database
6 2 (4.65%) Apache Cassandra
6 2 (4.65%) BusinessObjects
6 2 (4.65%) DB2
6 2 (4.65%) Impala
6 2 (4.65%) MarkLogic
6 2 (4.65%) QlikView
7 1 (2.33%) Amazon QuickSight
7 1 (2.33%) Power BI
7 1 (2.33%) Qlik Sense
7 1 (2.33%) SAS Visual Analytics
7 1 (2.33%) Spark SQL
Development Applications
1 8 (18.60%) Jenkins
2 6 (13.95%) Git (software)
3 4 (9.30%) Team Foundation Server
3 4 (9.30%) TeamCity
4 3 (6.98%) Hudson
4 3 (6.98%) JUnit
5 2 (4.65%) Maven
5 2 (4.65%) Subversion
5 2 (4.65%) Talend Open Studio
5 2 (4.65%) Vagrant
6 1 (2.33%) Atlassian Bamboo
6 1 (2.33%) CMake
6 1 (2.33%) ERwin
6 1 (2.33%) JIRA
6 1 (2.33%) jMock
6 1 (2.33%) Mockito
6 1 (2.33%) Octopus Deploy
6 1 (2.33%) SCons
6 1 (2.33%) Travis CI
6 1 (2.33%) Visual Studio
General
1 14 (32.56%) Finance
2 12 (27.91%) Banking
3 4 (9.30%) Front Office
4 3 (6.98%) Games
4 3 (6.98%) Investment Banking
4 3 (6.98%) Retail
4 3 (6.98%) Telecoms
5 2 (4.65%) Legal
6 1 (2.33%) Financial Institution
6 1 (2.33%) Law
Job Titles
1 19 (44.19%) Developer
2 10 (23.26%) Java Developer
3 9 (20.93%) Analyst
4 7 (16.28%) Data Engineer
5 5 (11.63%) Data Analyst
6 4 (9.30%) Asset Management Analyst
6 4 (9.30%) Asset Management Business Analyst
6 4 (9.30%) Business Analyst
6 4 (9.30%) Data Business Analyst
6 4 (9.30%) ETL Developer
7 3 (6.98%) Big Data Engineer
7 3 (6.98%) Front Office Developer
7 3 (6.98%) Games Developer
7 3 (6.98%) Java Games Developer
7 3 (6.98%) Release Analyst
7 3 (6.98%) Release Manager
7 3 (6.98%) Senior Developer
7 3 (6.98%) Telecoms Developer
7 3 (6.98%) Telecoms Java Developer
8 2 (4.65%) PHP Developer
Libraries, Frameworks & Software Standards
1 5 (11.63%) REST
1 5 (11.63%) Web Services
2 4 (9.30%) Middleware
2 4 (9.30%) Spring
3 3 (6.98%) Hibernate
3 3 (6.98%) JSON
4 2 (4.65%) AngularJS
4 2 (4.65%) J2SE
4 2 (4.65%) JMS
4 2 (4.65%) PHP-FPM
4 2 (4.65%) Sass
4 2 (4.65%) WebSphere MQ
4 2 (4.65%) XML
5 1 (2.33%) .NET
5 1 (2.33%) ASP.NET
5 1 (2.33%) COM
5 1 (2.33%) J2EE
5 1 (2.33%) JAXB
5 1 (2.33%) JDBC
5 1 (2.33%) SOAP
Miscellaneous
1 7 (16.28%) Equities
2 5 (11.63%) Management Information System
3 3 (6.98%) Computer Science
4 2 (4.65%) Analytical Skills
4 2 (4.65%) Fintech
5 1 (2.33%) Derivative
5 1 (2.33%) Equity Derivative
5 1 (2.33%) Fixed Income
5 1 (2.33%) Foreign Exchange (FX)
5 1 (2.33%) Hedge funds
5 1 (2.33%) Reference Data
5 1 (2.33%) Replication
Operating Systems
1 12 (27.91%) Linux
2 5 (11.63%) Unix
3 3 (6.98%) Windows
4 2 (4.65%) Windows Server
5 1 (2.33%) Windows Server 2003
5 1 (2.33%) Windows Server 2008
Processes & Methodologies
1 13 (30.23%) Agile Software Development
2 10 (23.26%) Change Management
2 10 (23.26%) Data Management
3 8 (18.60%) ETL
4 7 (16.28%) Analytics
4 7 (16.28%) Data Acquisition
5 6 (13.95%) Continuous Delivery
5 6 (13.95%) Continuous Integration
5 6 (13.95%) Data Modelling
5 6 (13.95%) DevOps
6 5 (11.63%) Asset Management
6 5 (11.63%) Automated Testing
6 5 (11.63%) Data Analytics
6 5 (11.63%) Investment Management
7 4 (9.30%) Data Enrichment
7 4 (9.30%) Data Extraction
7 4 (9.30%) Data Integration
7 4 (9.30%) Data Transformation
7 4 (9.30%) Mathematics
8 3 (6.98%) Electronic Trading
Programming Languages
1 21 (48.84%) SQL
2 16 (37.21%) Java
3 9 (20.93%) Python
4 5 (11.63%) Shell Script
5 4 (9.30%) Perl
6 3 (6.98%) JavaScript
6 3 (6.98%) R
6 3 (6.98%) Ruby
7 2 (4.65%) Bash Shell
7 2 (4.65%) C#
7 2 (4.65%) C++
7 2 (4.65%) PHP
7 2 (4.65%) PHP 5
7 2 (4.65%) PowerShell
7 2 (4.65%) Scala
7 2 (4.65%) T-SQL
7 2 (4.65%) VB
8 1 (2.33%) Go
8 1 (2.33%) Kotlin
8 1 (2.33%) PL/SQL
Qualifications
1 3 (6.98%) Degree
Quality Assurance & Compliance
1 7 (16.28%) Data Quality
2 1 (2.33%) QA
System Software
1 2 (4.65%) Tivoli Workload Scheduler
2 1 (2.33%) Apache Flume
2 1 (2.33%) HDFS
Systems Management
1 2 (4.65%) Ansible
1 2 (4.65%) Opscode Chef
1 2 (4.65%) Puppet
1 2 (4.65%) Tivoli
2 1 (2.33%) Control-M
2 1 (2.33%) Hadoop YARN
2 1 (2.33%) Terraform
Vendors
1 16 (37.21%) Oracle
2 8 (18.60%) Sybase
3 6 (13.95%) Microsoft
4 5 (11.63%) IBM
5 3 (6.98%) Informatica
5 3 (6.98%) Serena
5 3 (6.98%) Tableau
6 2 (4.65%) Adobe
6 2 (4.65%) Talend
7 1 (2.33%) Actimize
7 1 (2.33%) Cloudera
7 1 (2.33%) Hortonworks
7 1 (2.33%) iManage
7 1 (2.33%) ION Trading
7 1 (2.33%) MapR
7 1 (2.33%) MicroStrategy
7 1 (2.33%) Remedy
7 1 (2.33%) Teradata
7 1 (2.33%) TIBCO
7 1 (2.33%) TOWER Software