This course is for programmers who want to learn how to leverage the power of the SAS Quality Knowledge Base, or QKB. The QKB and the associated SAS Data Quality functions, routines, procedures, and CAS actions enable data cleansing, transformation, deduplication, and fuzzy matching using simplified code in DATA step, SQL, and CASL. The course builds on concepts presented in the SAS(R) Programming I: Essentials, SAS(R) Programming II: Manipulating Data with the DATA Step, and SAS(R) SQL 1: Essentials courses, and is not recommended for beginning SAS software users.