SAS

1. DATA STEPS

1.1. Statements

1.1.1. Executable Statements

1.1.2. Declarative Statements

1.2. Phase

1.2.1. Compilation Phase

1.2.2. Execution Phase

1.3. Each Data Step has a table

1.3.1. Rows called "Observations"

1.3.2. Columns called "Variables"

2. PROC STEPS