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How to write a MS_SQL query to populate a column from another column. I have a table:
name col_1 col_2 name1 null value1 name2 null value2
The result should be as follows:
name col_1 col_2 name1 value1 value1 name2 value2 value2
never mind. update mytable set tbl.col_1 = tbl_col2 where col_1 is null
