# PLSQL Rules

Index of all built-in rules available for PLSQL
Table of Contents

## Best Practices

Rules which enforce generally accepted best practices.

- TomKytesDespair: "WHEN OTHERS THEN NULL" hides all errors - (Re)RAISE an exception or call RAISE_APPLICATION_ERROR

## Code Style

Rules which enforce a specific coding style.

- AvoidTabCharacter: This rule checks, that there are no tab characters (‘\t’) in the source file. It reports only the…
- CodeFormat: This rule verifies that the PLSQL code is properly formatted. The following checks are executed: …
- ForLoopNaming: In case you have loops please name the loop variables more meaningful.
- LineLength: This rule checks for long lines. Please note that comments are not ignored. This rule is the PMD …
- MisplacedPragma: Oracle states that the PRAQMA AUTONOMOUS_TRANSACTION must be in the declaration block, …

## Design

Rules that help you discover design issues.

- CyclomaticComplexity: Complexity directly affects maintenance costs is determined by the number of decision points in a…
- ExcessiveMethodLength: Deprecated When methods are excessively long this usually indicates that the method is doing more than its n…
- ExcessiveObjectLength: Deprecated Excessive object line lengths are usually indications that the object may be burdened with excess…
- ExcessivePackageBodyLength: Deprecated Excessive class file lengths are usually indications that the class may be burdened with excessiv…
- ExcessivePackageSpecificationLength: Deprecated Excessive class file lengths are usually indications that the class may be burdened with excessiv…
- ExcessiveParameterList: Methods with numerous parameters are a challenge to maintain, especially if most of them share th…
- ExcessiveTypeLength: Deprecated Excessive class file lengths are usually indications that the class may be burdened with excessiv…
- NcssCount: This rule uses the NCSS (Non-Commenting Source Statements) metric to determine the number of line…
- NcssMethodCount: Deprecated This rule uses the NCSS (Non-Commenting Source Statements) algorithm to determine the number of l…
- NcssObjectCount: Deprecated This rule uses the NCSS (Non-Commenting Source Statements) algorithm to determine the number of l…
- NPathComplexity: The NPath complexity of a method is the number of acyclic execution paths through that method. A …
- TooManyFields: Classes that have too many fields can become unwieldy and could be redesigned to have fewer field…
- TooManyMethods: A package or type with too many methods is probably a good suspect for refactoring, in order to r…

## Error Prone

Rules to detect constructs that are either broken, extremely confusing or prone to runtime errors.

- TO_DATE_TO_CHAR: TO_DATE(TO_CHAR(date-variable)) used to remove time component - use TRUNC(date-variable)
- TO_DATEWithoutDateFormat: TO_DATE without date format- use TO_DATE(expression, date-format)
- TO_TIMESTAMPWithoutDateFormat: TO_TIMESTAMP without date format- use TO_TIMESTAMP(expression, date-format)

Tags: rule_references