Klasse Count

Alle implementierten Schnittstellen:
Column, SQLFunction

public class Count extends AggregateFunction
SQL99 Standard count function.
Version:
$Id: Count.java 1848281 2018-12-06 10:48:36Z tv $
  • Konstruktordetails

    • Count

      public Count(Column column)
      Construct an COUNT function class with the column to count.
      Parameter:
      column - the Column to count.
    • Count

      public Count(String sqlExpression)
      Construct an COUNT function class with an SQL expression to count.
      Parameter:
      sqlExpression - the SQL expression to count.
    • Count

      public Count(Column column, boolean distinct)
      Construct an COUNT function class with the column to count and possibly a distinct modifier.
      Parameter:
      column - the Column to count.
      distinct - whether to count only over distinct values.
  • Methodendetails