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Read file and capturing group:
cat output_sql.txt | sed -r 's/(.*)\ \-.*[0-9]+/\1/g'
Example:
  Input: sed - January 2015
  Output: sed
  
Update file directly:
  sed -i (.*) file.txt
  
Concat
  while read line1; do true; echo 'insert into equ_ticketname_queuename values('$line1', );'; done < output_sql.txt