Table.ReplaceValue

用指定列中的其他值替换一个值。

Syntax

Table.ReplaceValue(
    table as table,
    oldValue as any,
    newValue as any,
    replacer as function,
    columnsToSearch as list
) as table

Remarks

将表中指定列的值替换为新值。

• table: 要搜索的表格。
• oldValue: 要替换的值。
• newValue: 替换值。
• replacer: 要使用的替换器函数。该函数可以是 Replacer.ReplaceText，用于用新文本替换原始文本; Replacer.ReplaceValue，用于用新值替换原始值; 或者是自定义替换器。
• columnsToSearch: 包含表中要搜索替换值的特定列的列表。

Examples

Example #1

将文本“goodbye”替换为 B 列中的“world”，仅匹配整个值。

Table.ReplaceValue(
    Table.FromRecords({
        [A = 1, B = "hello"],
        [A = 2, B = "goodbye"],
        [A = 3, B = "goodbyes"]
    }),
    "goodbye",
    "world",
    Replacer.ReplaceValue,
    {"B"}
)

Result:

Table.FromRecords({
    [A = 1, B = "hello"],
    [A = 2, B = "world"],
    [A = 3, B = "goodbyes"]
})

Example #2

将文本 “your” 替换为 B 列中的 “or”，与值的任何部分匹配。

Table.ReplaceValue(
    Table.FromRecords({
        [A = 1, B = "hello"],
        [A = 2, B = "wurld"]
    }),
    "ur",
    "or",
    Replacer.ReplaceText,
    {"B"}
)

Result:

Table.FromRecords({
    [A = 1, B = "hello"],
    [A = 2, B = "world"]
})

Example #3

匿名化美国员工的姓名。

Table.ReplaceValue(
    Table.FromRecords({
        [Name = "Cindy", Country = "US"],
        [Name = "Bob", Country = "CA"]
    }),
    each if [Country] = "US" then [Name] else false,
    each Text.Repeat("*", Text.Length([Name])),
    Replacer.ReplaceValue,
    {"Name"}
)

Result:

Table.FromRecords({
    [Name = "*****", Country = "US"],
    [Name = "Bob", Country = "CA"]
})

Example #4

匿名化美国员工的所有列。

Table.ReplaceValue(
    Table.FromRecords({
        [Name = "Cindy", Country = "US"],
        [Name = "Bob", Country = "CA"]
    }),
    each [Country] = "US",
    "?",
    (currentValue, isUS, replacementValue) =>
        if isUS then
            Text.Repeat(replacementValue, Text.Length(currentValue))
        else
            currentValue,
    {"Name", "Country"}
)

Result:

Table.FromRecords({
    [Name = "?????", Country = "??"],
    [Name = "Bob", Country = "CA"]
})

Category

Table.Transformation