Example: dental hygienist
Search results with tag "How and when to use where"
SUGI 24: How and When to Use WHERE - SAS
support.sas.comTopics range from basic syntax to efficiencies when accessing large indexed data sets. The intent is to start answering the questions: ... Advantages of WHERE Statement • Uses index if appropriate • Efficient (before transfer to PDV) ... NULL can be inefficient for ORACLE is that the index is not used in this situation. You should check
SUGI 24: How and When to Use WHERE - SAS
www2.sas.comHow and When to Use WHERE J. Meimei Ma, Quintiles, Research Triangle Park, NC Sandra Schlotzhauer, Schlotzhauer Consulting, Chapel Hill, NC INTRODUCTION