The Difference Between MERGE Statement and APPEND Procedure in SAS
When working with SAS, it is essential to understand the contrast between the MERGE statement and the APPEND procedure.
MERGE Statement
The MERGE statement in SAS is used to combine datasets by matching the values of one or more variables. It merges datasets horizontally based on common variables, creating a new dataset with combined observations.
APPEND Procedure
On the other hand, the APPEND procedure in SAS is used to stack datasets on top of each other vertically. It appends observations from one dataset to another, increasing the number of rows without altering the columns.
Focus Keyword: SAS MERGE vs. APPEND
In summary, the key difference lies in how the data is combined - MERGE statement merges datasets horizontally based on common variables, while the APPEND procedure stacks datasets vertically without altering columns.
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