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

Database Performance Tuning
London / City of London
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank 159 152 185
Rank change year-on-year -7 +33  
Contract jobs citing Database Tuning 3 7 6
As % of all contract IT jobs advertised in the City of London 0.098% 0.21% 0.12%
As % of the Processes & Methodologies category 0.11% 0.24% 0.14%
Number of daily rates quoted 1 7 4
Median daily rate £550 £350 £438
Median daily rate % change year-on-year +57.14% -20.00%  
UK excluding London median daily rate £388 £400 £375
% change year-on-year -3.12% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Database Tuning is in the process and methodology 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 process and methodology skills.

Contract Process & Methodology Skills
City of London
Contract job vacancies with a requirement for process and methodology skills 2628 2969 4223
As % of all contract IT job vacancies advertised in the City of London 85.55% 87.71% 82.58%
Number of daily rates quoted 2060 2378 3263
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 £344 £325 £320
10% offered a daily rate of more than £625 £625 £625
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 23 28 34
Median hourly rate £16.00 £20.00 £20.45
Median hourly rate % change year-on-year -20.00% -2.17%  
90% offered a hourly rate of more than £13.50 £13.00 £12.50
10% offered a hourly rate of more than £28.35 £47.50 £92.50
UK excluding London median hourly rate £35.75 £38.50 £30.00
% change year-on-year -7.14% +28.33%  

Database Tuning
Job Vacancy Trend in the City of London

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

Job vacancy trend for Database Tuning in the City of London

Database Tuning
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 Database Tuning in the City of London.

Contractor daily rate trend for Database Tuning in the City of London

Database Tuning
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 Database Tuning in the City of London.

Contractor hourly rate trend for Database Tuning in the City of London

For the 6 months to 29 March 2017, IT contractor jobs citing Database Tuning 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 Database Tuning.

1 8 (88.89%) SQL
1 8 (88.89%) Performance Tuning
2 7 (77.78%) Finance
3 6 (66.67%) Software Engineering
3 6 (66.67%) PCI DSS
3 6 (66.67%) Unix
3 6 (66.67%) Database Security
3 6 (66.67%) WorldPay
4 5 (55.56%) Oracle Database
4 5 (55.56%) Oracle
4 5 (55.56%) Oracle Database 11g
4 5 (55.56%) Oracle RAC
5 4 (44.44%) Agile Software Development
5 4 (44.44%) SQL Server
5 4 (44.44%) PL/SQL
5 4 (44.44%) ITIL
5 4 (44.44%) Shell Script
5 4 (44.44%) Oracle GoldenGate
6 3 (33.33%) Mentoring
6 3 (33.33%) Analytical Skills
6 3 (33.33%) SQL Server 2014
6 3 (33.33%) SQL Server 2012
6 3 (33.33%) Git (software)
6 3 (33.33%) Confluence
6 3 (33.33%) High Availability
6 3 (33.33%) Disaster Recovery
6 3 (33.33%) ETL
6 3 (33.33%) Data Modelling
6 3 (33.33%) VLDB
6 3 (33.33%) T-SQL

Database Tuning
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 (33.33%) Confluence
Communications & Networking
1 2 (22.22%) LAN
1 2 (22.22%) WAN
Database & Business Intelligence
1 5 (55.56%) Oracle Database
1 5 (55.56%) Oracle Database 11g
2 4 (44.44%) SQL Server
3 3 (33.33%) SQL Server 2012
3 3 (33.33%) SQL Server 2014
3 3 (33.33%) SQL Server Integration Services
3 3 (33.33%) VLDB
4 2 (22.22%) Oracle Database 12c
4 2 (22.22%) Oracle Exadata
4 2 (22.22%) SQL Server 2016
5 1 (11.11%) DB2
5 1 (11.11%) Oracle Database 10g
5 1 (11.11%) RDBMS
5 1 (11.11%) Relational Database
5 1 (11.11%) SQL Server Analysis Services
5 1 (11.11%) SQL Server Reporting Services
Development Applications
1 3 (33.33%) Git (software)
1 3 (33.33%) JIRA
2 1 (11.11%) JUnit
2 1 (11.11%) Team Foundation Server
General
1 7 (77.78%) Finance
2 1 (11.11%) Banking
2 1 (11.11%) Front Office
Job Titles
1 6 (66.67%) DBA
2 3 (33.33%) Development DBA
3 2 (22.22%) Developer
3 2 (22.22%) SQL DBA
3 2 (22.22%) SQL Server DBA
4 1 (11.11%) Administrator
4 1 (11.11%) Automation Engineer
4 1 (11.11%) Database Engineer
4 1 (11.11%) ETL Developer
4 1 (11.11%) Front Office Developer
4 1 (11.11%) Java Developer
4 1 (11.11%) Oracle Database Engineer
4 1 (11.11%) Oracle DBA
4 1 (11.11%) Senior DBA
4 1 (11.11%) Senior Developer
4 1 (11.11%) Senior Development DBA
4 1 (11.11%) Senior ETL Developer
4 1 (11.11%) Senior SQL Developer
4 1 (11.11%) SQL Developer
4 1 (11.11%) SSIS Developer
Libraries, Frameworks & Software Standards
1 4 (44.44%) Oracle GoldenGate
2 2 (22.22%) .NET
3 1 (11.11%) J2SE
3 1 (11.11%) JMS
3 1 (11.11%) Middleware
3 1 (11.11%) Spring
Miscellaneous
1 3 (33.33%) Analytical Skills
1 3 (33.33%) Replication
2 2 (22.22%) Data Centre
3 1 (11.11%) Derivative
3 1 (11.11%) Equity Derivative
3 1 (11.11%) Linux Command Line
3 1 (11.11%) Management Information System
3 1 (11.11%) Oracle Exalogic
3 1 (11.11%) Wiki
Operating Systems
1 6 (66.67%) Unix
2 2 (22.22%) Linux
3 1 (11.11%) AIX
3 1 (11.11%) Solaris
Processes & Methodologies
1 8 (88.89%) Performance Tuning
2 6 (66.67%) Database Security
2 6 (66.67%) Software Engineering
3 4 (44.44%) Agile Software Development
3 4 (44.44%) ITIL
4 3 (33.33%) Business Analysis
4 3 (33.33%) Data Modelling
4 3 (33.33%) Disaster Recovery
4 3 (33.33%) ETL
4 3 (33.33%) High Availability
4 3 (33.33%) Mathematics
4 3 (33.33%) Mentoring
5 2 (22.22%) Application Packaging
5 2 (22.22%) Patch Management
5 2 (22.22%) Security Auditing
6 1 (11.11%) Capacity Planning
6 1 (11.11%) Change Management
6 1 (11.11%) OO
6 1 (11.11%) OOD
6 1 (11.11%) TDD
Programming Languages
1 8 (88.89%) SQL
2 4 (44.44%) PL/SQL
2 4 (44.44%) Shell Script
3 3 (33.33%) T-SQL
4 2 (22.22%) PowerShell
5 1 (11.11%) Java
5 1 (11.11%) Korn
5 1 (11.11%) Perl
Qualifications
1 3 (33.33%) Degree
Quality Assurance & Compliance
1 6 (66.67%) PCI DSS
2 3 (33.33%) QA
3 1 (11.11%) SLA
System Software
1 5 (55.56%) Oracle RAC
2 2 (22.22%) Virtual Servers
Systems Management
1 2 (22.22%) Data Guard
2 1 (11.11%) Ansible
2 1 (11.11%) Enterprise Manager Cloud Control
2 1 (11.11%) Oracle Enterprise Manager
2 1 (11.11%) Oracle RMAN
Vendors
1 6 (66.67%) WorldPay
2 5 (55.56%) Oracle
3 1 (11.11%) Sybase