Understanding Methods of Creating Tables

You can use PROC SQL to create a table in three ways. The CREATE TABLE statement is used for all three methods, although the syntax of the statement varies for each method.
Method of Creating a Table
Example
create an empty table by defining columns 
proc sql;
    create table work.discount
           (Destination char(3),
           BeginDate num Format=date9.,
           EndDate num format=date9.,
           Discount num);
create an empty table that is like (has the same columns and attributes as) an existing table 
proc sql;
    create table work.flightdelays2
        like sasuser.flightdelays;
create a populated table (a table with both columns and rows of data) from a query result 
proc sql;
   create table work.ticketagents as select ...

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