枚举 OverEnum

    • 枚举常量详细资料

      • RANK

        public static final OverEnum RANK
        Rank of current row within its partition, with gaps
      • DENSE_RANK

        public static final OverEnum DENSE_RANK
        Rank of current row within its partition, without gaps
      • ROW_NUMBER

        public static final OverEnum ROW_NUMBER
        Number of current row within its partition
      • PERCENT_RANK

        public static final OverEnum PERCENT_RANK
        Percentage rank value
      • CUME_DIST

        public static final OverEnum CUME_DIST
        Cumulative distribution value
      • LAG

        public static final OverEnum LAG
        Value of argument from row lagging current row within partition
      • LEAD

        public static final OverEnum LEAD
        Value of argument from row leading current row within partition
      • FIRST_VALUE

        public static final OverEnum FIRST_VALUE
        Value of argument from first row of window frame
      • LAST_VALUE

        public static final OverEnum LAST_VALUE
        Value of argument from last row of window frame
      • NTH_VALUE

        public static final OverEnum NTH_VALUE
        Value of argument from N-th row of window frame
      • SUM

        public static final OverEnum SUM
        Bucket number of current row within its partition.
      • COUNT

        public static final OverEnum COUNT
    • 方法详细资料

      • values

        public static OverEnum[] values()
        按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:
        for (OverEnum c : OverEnum.values())
            System.out.println(c);
        
        返回:
        按照声明该枚举类型的常量的顺序返回的包含这些常量的数组
      • valueOf

        public static OverEnum valueOf​(String name)
        返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)
        参数:
        name - 要返回的枚举常量的名称。
        返回:
        返回带有指定名称的枚举常量
        抛出:
        IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量
        NullPointerException - 如果参数为空值