BMC AMI Utilities SQL language elements


The basic elements of the BMC AMI Utilities SQL language are expressions and predicates. When an expression is evaluated, it normally returns a value of a known data type defined in the language. You can use expressions to form predicates or to manipulate data elements. When a predicate is evaluated, it normally results in a true or false condition. You can use predicates to define search conditions.

An expression in its basic form can be one of the following items:

  • Function
  • Case expression
  • Constant
  • Column name
  • Special register
  • Labeled duration

An expression can also include other expressions. The following diagrams show BMC AMI Utilities SQL language element syntax:

BMC AMI Utilities SQL syntax for expressions

NGT_SQL_syntax_expressions.png


BMC AMI Utilities SQL syntax for expressions (labeled-duration syntax)

NGT_SQL_syntax_expressions_labeled_duration.png

BMC AMI Utilities SQL syntax for expressions (CASE statement)

NGT_SQL_syntax_expressions_CASE.png 

Searched WHEN clause

Searched_WHEN_clause.png  

Simple WHEN clause

Simple_WHEN_clause.png 

 BMC AMI Utilities SQL syntax for predicates

NGT_SQL_syntax_predicates.png



 

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