Avoid Tables with more than 20 columns on an OLTP system | CAST Appmarq

Avoid Tables with more than 20 columns on an OLTP system


Rule Definition
In an OLTP system, having tables with more than 20 columns can bring performances problem. Normalization should be considered.

Remediation
Normalize the tables.

Related Technologies
DB2 Server PL/SQL Microsoft T-SQL Sybase T-SQL DB2 z/OS

Health Factor

  Total Quality Index


Technical Criterion
Volume - Number of Components

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CAST Appmarq is by far the biggest repository of data about real IT systems. It's built on thousands of analyzed applications, made of 35 different technologies, by over 300 business organizations across major verticals. It provides IT Leaders with factual key analytics to let them know if their applications are on track.

Benchmark Statistics

Global Compliance

83.22%

Total Violations
128,818
Total Opportunities
767,862
Average Violations / App.
107.26
The compliance score represents 1 minus the ratio between the number of times a rule has been violated compared to the number of opportunities in a set of applications that the rule could have been violated.

Industry Insights

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81.11%

Financial Services

80.90%

Insurance

81.13%