Replaces existing text with new text in a text string. It’s comes under Text functions DAX category.
Syntax:
SUBSTITUTE(<text>, <old_text>, <new_text>, <instance_num>)
Description:
| S no. | Parameter | Description |
| 1 | text | The text in which you want to substitute characters, or a reference to a column containing text. |
| 2 | old_text | The existing text that you want to replace. |
| 3 | new_text | The text you want to replace old_text with. |
| 4 | instance_num | (optional) The occurrence of old_text you want to replace. If omitted, every instance of old_text is replaced |
Note:
- It is case-sensitive. If case does not match between text and old_text, SUBSTITUTE will not replace the text.
- This function is not supported for use in Direct Query mode when used in calculated columns or row-level security (RLS) rules.
So, Let’s start with an example, you can download the sample Dataset from below link
Step-1: Create one calculated column, right click to dataset name > select New column
Step-2: Now replace existing “&” text with “and” in column “Product Sub-Category”.
Substitute = SUBSTITUTE(Orders[Product Sub-Category], "&", "and")
Step-3: Drag new column to Table visual
So you can see the output of substitute DAX as in above image, it replace “&” text with “and”.
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