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(Showing Draft Content)

多值参数

功能概述

数据集参数能够支持多值作为参数值。

主要的应用场景如下:

  • 作为值参与操作符为 IN(在)和 NOT IN(不在)的数据集过滤器,实现集合包含运算。

  • 作为一个数组值参与计算字段的运算,通常是作为特定函数的参数。

  • 作为一个拓展参与自定义表的原生 SQL 查询。例如 Oracle 本不支持 SQL 参数传入数组值,但在 Wyn中,针对 Oracle 源的自定义表中的查询语句可以使用多值参数。

设置多值参数

1. 设置查询参数时,如果勾选多值,那么意味着该查询参数为多值参数,用户输入时可以输入多个值。

此时也可以为参数设定多个默认值。

image

2. 在数据过滤器中使用多值参数时,需要将操作符改为才可以生效。

含义为:数据在用户输入的值当中,即满足过滤条件。

image2020-4-7_17-46-45.png

3. 预览时输入多个值,以英文输入法的逗号分隔。

image2019-11-20_14-52-2.png

image2020-4-7_17-48-2.png