Question

Hi Guys I have a table with Multiple column and rows my First Column B2kID is blank I need it Update with values Like:

VC1
VC2
VC3
VC4
 .
 .

How can I achieve this?

Answer 1

You could use ROWNUM to get a unique number for a record:

UPDATE tableName
SET columnName = 'VC' || ROWNUM
WHERE columnName IS NULL
;