# Only

Only 脚本关键字用作聚合函数，或作为部分重载前缀 Add、Replace 和 Merge 语法的一部分。

[Only - 脚本函数](https://help.qlik.com/zh-CN/qlikview/September2026/Subsystems/Client/Content/QV_QlikView/Scripting/AggregationFunctions/only.htm)

[Add](https://help.qlik.com/zh-CN/qlikview/September2026/Subsystems/Client/Content/QV_QlikView/Scripting/ScriptPrefixes/Add.htm)

[Replace](https://help.qlik.com/zh-CN/qlikview/September2026/Subsystems/Client/Content/QV_QlikView/Scripting/ScriptPrefixes/Replace.htm)

[Merge](https://help.qlik.com/zh-CN/qlikview/September2026/Subsystems/Client/Content/QV_QlikView/Scripting/ScriptPrefixes/Merge.htm)