The document explains the process of merging datasets in SAS using a 'data' step with a common variable. It outlines the necessary steps including sorting datasets by the common variable and provides a code example demonstrating the merging process. The final output combines specified variables from two separate datasets into a single dataset.

1. H A N D S O N S C H O O L O F D A T A S C I E N C E
Merging SAS DataSets
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2. • To merge two or more datasets in SAS we perform “Data” step.
• Datasets are merged by a common variable (Column).
• Datasets must be sorted on the “by” variable.
Merge SAS Datasets
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3. • Data merged_dataset;
• Merge dataset1 dataset2 . .;
• By common_Variable;
• Run;
Syntax
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4. Task
Name Age Sex
Rosy 26 F
Brew 35 M
Neel 32 M
Name Treatment Date
Rosy A 02/05/22
Brew A 01/04/22
Neel B 03/05/22
• There is two datasets x & y.
• x datasets contain three variable Name, Age, Sex.
• Y datasets contain three variable Name, Treatment, Date.
Scenario
• Our task is to create a data set where the variables Name,
Age, Sex, Treatment and Date will be there.
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5. 1. Proc sort data=x;
2. By Name;
3. Run;
DATASET X
1. Proc sort data=y;
2. By Name;
3. Run;
DATASET Y
Sorting Data
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6. 1. Data z;
2. Merge x y;
3. By Name;
4. Run;
MERGING STEP
Merging Datasets
OUTPUT DATASET(Z)
Name Age Sex
Rosy 26 F
Brew 35 M
Neel 32 M
Treatment Date
A 02/05/22
A 01/04/22
B 03/05/22
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7. Code Output
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8. H A N D S O N S C H O O L O F D A T A S C I E N C E
Thank You
W W W . H A N D S O N S Y S T E M . C O M