tshark-command|awk 'BEGIN {FS=":"};{print "insert into tbl_name (field1, field2, ..., field8) values (" $1 "," $2 "," $3 "," $4 "," $5 "," $6 "," $7 "," $8 ");"}' > insertcmd.sql
alternatively:
tshark-command|sed 's/^/insert into tbl_name \(field1,field2,...,field8\) values \(/g'|sed 's/:/,/g'|sed 's/$/);"
and finally:
mysql dbname < insertcmd.sql
I have not tested this, but it should work.