Data Model Design

I have over 25 years working in designing solutions for many different industries. We design for performance, efficiency and throughput

Development

I develop in all known databases: Oracle, Sybase, SQL Server, DB2, MySQL, PostgreSQL and SQLite.

I provide proactive monitoring of your systems, identifying issues before they become problems.

Data security and privacy are critical for any organisation. Are you secure?

Error Number:	1057
Error Code:	ER_WRONG_SUM_SELECT
SQL State:	42000
ODBC State:	S1009
Message:	Statement has sum functions and columns in same statement