==Fixing Errors in the Matcher Output for portco and ipo==
After running the Matcher on your portcokeys and ipokeys you will notice there are some errors in the matched output file. Add flags in Excel that exclude rows where the issuedate < datefirstinv and where the issuedate = datefirstinv. If the exclude flag is 1 than you would want to exclude this entry from your table i.e. the issuedate > datefirstinv. If the flags are selected to 0, then you will want to keep this row. Also add a column for a warning flag that is 1 if the warning column is "Hall-Warning:Multiple". Next copy this txt file into the db by creating a new table.
DROP TABLE matcherportcoipo;
CREATE TABLE matcherportcoipo (