表操作函数

Power BI 中级 DAX

Maarten Van den Broeck

Content Developer at DataCamp

表操作函数概览

DISTINCT(<table> | <table>)

从表中移除重复行或从列中移除重复值

SELECTCOLUMNS(<table>, <name>, <expression>)

将其他表中的所选列作为新表返回

ADDCOLUMNS(<table>, <name>, <expression>)

返回在输入表中追加来自其他表的所选列

SUMMARIZE(<table>,
          <groupBy_columnName>,
          <name>,
          <expression>)

返回按分组计算汇总的汇总表

ADDCOLUMNS(<table>, <name>, <expression>)

返回在输入表中追加来自其他表的所选列

ADDCOLUMNS(Fact_table,
           "Profit",
           Revenue - Costs)

ADDCOLUMNS(<table>, <name>, <expression>)

返回在输入表中追加来自其他表的所选列

ADDCOLUMNS(Fact_table,
           "Profit",
           Revenue - Costs)

Revenue	Costs	Profit
100	25	75
150	25	125

ADDCOLUMNS(<table>, <name>, <expression>)

返回在输入表中追加来自其他表的所选列

ADDCOLUMNS(Fact_table,
           "Profit",
           Revenue - Costs)

Revenue	Costs	Profit
100	25	75
150	25	125

SELECTCOLUMNS(<table>, <name>, <expression>)

将其他表中的所选列作为新表返回

SELECTCOLUMNS(Fact_table,
              "Profit",
              Revenue - Costs)

Profit
75
125

SUMMARIZE(<table>,
          <groupBy_columnName>,
          <name>,
          <expression>)

返回按分组计算汇总的汇总表

SUMMARIZE(<table>,
          <groupBy_columnName>,
          <name>,
          <expression>)

返回按分组计算汇总的汇总表

SUMMARIZE(Amounts,

          Amounts[Year],
          Amounts[Category],

          "Total Amount",
          SUM(Amounts[Amount]))

SUMMARIZE(<table>,
          <groupBy_columnName>,
          <name>,
          <expression>)

返回按分组计算汇总的汇总表

SUMMARIZE(Amounts,

          Amounts[Year],
          Amounts[Category],

          "Total Amount",
          SUM(Amounts[Amount]))

SUMMARIZE(Amounts,
          Amounts[Year],
          Amounts[Category]),
          "Total Amount",
          SUM(Amounts[Amount])

ADDCOLUMNS(
    SUMMARIZE(Amounts,
               Amounts[Year],
               Amounts[Category]),
    "Total Amount",
    SUM(Amounts[Amount])
)

Power BI 中级 DAX