Google sheets: append data from 2 tabs, with different column order - google-sheets

Question

I have 2 tabs named S1 and S2. They both contain 3 columns of data (A, B and C). I just want to merge their content in a 3rd tab, using functions. Issue is that the order of columns is different in S1 and S2.
S1
S2
S1
| Column A | Column B | Column C |
| -------- | -------- | -------- |
| 1 | A | DeptA |
| 2 | B | DeptB |
| 3 | C | DeptC |
S2
| Column A | Column B | Column C |
| -------- | -------- | -------- |
| 4 | DeptD | D |
| 5 | DeptE | E |
| 6 | DeptF | F |
What I want to get in a 3rd tab is:
| Column A | Column B | Column C |
| -------- | -------- | -------- |
| 1 | A | DeptA |
| 2 | B | DeptB |
| 3 | C | DeptC |
| 4 | D | DeptD |
| 5 | E | DeptE |
| 6 | F | DeptF |
I'm using the following formula: "query({'S1'!A1:C;'S2'!A2:A,'S2'!C2:C,'S2'!B2:B};"Select Col1, Col2,Col3 where Col1 is not null";1)". But I get a formula analysis error.
I have also tried "
={
query({S1!A1:C},"Select Col1,Col2,Col3");
query({S2!A2:C},"Select Col1,Col3,Col2")
}
"
But I also get a formula analysis error
Spreadsheet access: https://docs.google.com/spreadsheets/d/1FdaRSANfcqMkSBE-is8ek8bFWp80vVW8P3a-v0q4MwU/edit?usp=share_link
Thanks for your help

Answer 1

Depending on locale setting its either:
=query({{'S1'!A1:C};{'S2'!A2:A\'S2'!C2:C\'S2'!B2:B}};"Select Col1, Col2, Col3 where Col1 is not null")
OR
=query({{'S1'!A1:C};{'S2'!A2:A,'S2'!C2:C,'S2'!B2:B}},"Select Col1, Col2, Col3 where Col1 is not null")

Answer 2

The issue is in your Locale Settings. You should use semi-colons instead of commas:
={
query({'S1'!A1:C};"Select Col1,Col2,Col3");
query({'S2'!A2:C};"Select Col1,Col3,Col2")
}