DQMATCH Procedure

Example 6: Generating Multiple Simple Match Codes

The following example creates more than one simple match code with a single DQMATCH procedure step. The first example, created a composite match code by specifying the MATCHCODE= option in the DQMATCH procedure statement.
This example creates simple match codes by specifying the MATCHCODE= option on each CRITERIA statement. In addition, unlike the first example, which creates a cluster number, you cannot create a cluster number when generating multiple simple match codes.
The default sensitivity level of 85 is used in both CRITERIA statements. The locale ENUSA is assumed to have been loaded into memory previously with the %DQLOAD AUTOCALL macro.
/* Create the input data set. */
data cust_db;
   length customer $ 22;
   length address $ 31;
   input customer $char22. address $char31.;
Bob Beckett             392 S. Main St. PO Box 2270
Robert E. Beckett       392 S. Main St. PO Box 2270
Rob Beckett             392 S. Main St. PO Box 2270
Paul Becker             392 N. Main St. PO Box 7720
Bobby Becket            392 Main St.
Mr. Robert J. Beckeit   P. O. Box 2270 392 S. Main St.
Mr. Robert E Beckett    392 South Main Street #2270
Mr. Raul Becker         392 North Main St.

/* Run the DQMATCH procedure. */
proc dqmatch data=cust_db out=out_db5 locale='ENUSA';
   criteria matchdef='Name' var=customer matchcode=mc_name;
   criteria matchdef='Address' var=address matchcode=mc_addr;

/* Print the results. */
proc print data=out_db5;
PROC Print Output
PROC Print Output for Multiple Simple Match Codes


The output data set, OUT_DB5, includes the new variables MC_NAME and MC_ADDR. Compare this to the result in example 1, where the same match code values were combined to form a composite match code in the MATCH_CD variable.
Using simple or composite match codes depends on the type of comparison that you need. If you want to compare  names and addresses separately, generate separate match codes as shown in this example. If you want to do comparisons based on the combined Name and Address, generate a composite match code as shown in example 1.
See Generate Composite Match Codes to compare the examples.
Note: This example is available in the SAS Sample Library under the name DQMCDFL2.