This document discusses basic operators in relational database management systems (RDBMS): SELECT, PROJECT, and WHERE. SELECT retrieves all or specific records from a table based on conditions. PROJECT extracts specific attributes from records. WHERE filters records by a condition. Examples are provided to demonstrate each operator on a sample student data table.

1. RDBMS BASICS BASIC RDBMS OPERATORS:  SELECT  Choose all or specific values from a table SELECT ALL Yields Given: Table Student StudentID Name Address 123456789 Saenz, Lupe 123 Mesa 234567890 Chung, Mei 37 5 th St. 345678901 Adams, John 54B Hague 456789012 Elam, Mary 123-22 E St. 567890123 Bush, G.W 555 Austin 678901234 Clinton, B. 89 Congress 789012345 Bush, J. 555 Austin StudentID Name Address 123456789 Saenz, Lupe 123 Mesa 234567890 Chung, Mei 37 5 th St. 345678901 Adams, John 54B Hague 456789012 Elam, Mary 123-22 E St. 567890123 Bush, G.W 555 Austin 678901234 Clinton, B. 89 Congress 789012345 Bush, J. 555 Austin

2. RDBMS BASICS Basic RDBMS Operators:  SELECT  Choose all or specific values from a table SELECT WHERE ADDRESS = “555 Austin” Yields Given: Table Student StudentID Name Address 123456789 Saenz, Lupe 123 Mesa 234567890 Chung, Mei 37 5 th St. 345678901 Adams, John 54B Hague 456789012 Elam, Mary 123-22 E St. 567890123 Bush, G.W 555 Austin 678901234 Clinton, B. 89 Congress 789012345 Bush, J. 555 Austin StudentID Name Address 567890123 Bush, G.W 555 Austin 789012345 Bush, J. Austin

3. RDBMS BASICS BASIC RDBMS OPERATORS:  PROJECT  Produce list of all values for a selected attribute PROJECT STUDENTID YIELDS Given: Table Student StudentID Name Address 123456789 Saenz, Lupe 123 Mesa 234567890 Chung, Mei 37 5 th St. 345678901 Adams, John 54B Hague 456789012 Elam, Mary 123-22 E St. 567890123 Bush, G.W 555 Austin 678901234 Clinton, B. 89 Congress 789012345 Bush, J. 555 Austin StudentID 123456789 234567890 345678901 456789012 567890123 678901234 789012345

4. RDBMS Basics Basic RDBMS Operators:  PROJECT  Produce list of of all values for a selected attribute PROJECT STUDENTID, NAME Yields Given: Table Student StudentID Name Address 123456789 Saenz, Lupe 123 Mesa 234567890 Chung, Mei 37 5 th St. 345678901 Adams, John 54B Hague 456789012 Elam, Mary 123-22 E St. 567890123 Bush, G.W 555 Austin 678901234 Clinton, B. 89 Congress 789012345 Bush, J. 555 Austin StudentID Name 123456789 Saenz, Lupe 234567890 Chung, Mei 345678901 Adams, John 456789012 Elam, Mary 567890123 Bush, G.W 678901234 Clinton, B. 789012345 Bush, J.