Db2 question which query will not work

Db2 question which query will not work

Which of the query will not work?

1.       SELECT Column1, ‘Column 2 = ‘, Column2 FROM Table1;

2.       SELECT Column1,Column2 FROM Table1 ORDER BY 1;

3.       SELECT Column1, Column2*100 FROM Table1;

4.       SELECT Column1,Column2 FROM Table1 WHERE Column1 LIKE ‘%ABCD%’;

5.       SELECT Column1,Column2 FROM Table1 WHERE Column1=’value1’ ORDER BYColumn3;

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