Combining and merging SAS datasets (Chapter 5)

• Stacking datasets (Section 5.2)

• Interleaving datasets (Section 5.3)

• Merging datasets (Sections 5.4 & 5.5)

• Merging to a dataset with 1 observation (Section 5.7)
  
  
  
• Data step options (Section 5.9)

• Creating multiple datasets with OUTPUT statement (Section 5.11)

• Creating and reducing observations with the OUTPUT statement and PROC TRANSPOSE (Section 5.12 & 5.13)