Methods of Combining SAS Data Sets

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Concatenating data sets: For more information about concatenating data sets, see Concatenating SAS Data Sets.
Interleaving data sets: For more information about interleaving data sets, see Interleaving SAS Data Sets.
Manipulating data sets: You can manipulate data sets as you combine them. For example, you can select certain observations from each data set and determine which data set an observation came from. For more information, see Conditionally Processing Observations from Multiple SAS Data Sets.
MERGE, MODIFY, and UPDATE statements: For more information about these statements, see the Statements section of SAS Language Reference: Dictionary, and the Reading, Combining, and Modifying SAS Data Sets section of SAS Language Reference: Concepts.
Merging data sets: For more information about merging data sets, see Merging SAS Data Sets.
Modifying data sets: For more information about modifying data sets, see Modifying SAS Data Sets, and Conditionally Processing Observations from Multiple SAS Data Sets.
Updating data sets: For more information about updating data sets, see Updating SAS Data Sets.