Displays values from data records in a record stream on the current
 default output device.  PRINT is intended for testing and learning.
 Using PRINT, you can type a query at the terminal and see the results
 immediately.  You can also use the SET OUTPUT statement to write the
 results to a file or another output device.

 PRINT is valid only in RDO.  To retrieve values in an RDBPRE program,
 use the GET statement to assign database values to host language
 variables.

 RDO Example:

      RDO>  FOR J IN JOBS
      cont>  PRINT J.JOB_CODE, J.JOB_TITLE
      cont> END_FOR

Additional information available:

MoreFormatExamples

 You can use the PRINT statement in three ways:

  o  When you establish a record stream with the FOR or START_STREAM
     statement, you use the PRINT statement to write values from the
     current record stream to the output device.  In the case of
     START_STREAM, you also need FETCH to indicate the current record
     in the stream.

  o  You can also use PRINT alone, without a FOR or FETCH statement,
     to retrieve the result of a statistical function.  The record
     stream is formed by the record selection expression within the
     statistical expression.

  o  You can use PRINT...RDB$DB_KEY in a STORE...END_STORE block to
     display the database key of the record just stored.  Example:

     RDO> STORE E IN EMPLOYEES USING
     cont>  E.EMPLOYEE_ID = "15231";
     cont>  E.LAST_NAME = "Smith";
     cont>   PRINT E.RDB$DB_KEY
     cont> END_STORE
                 RDB$DB_KEY
                   21:339:0

 PRINT ───┬─┬───> value-expr ────────┬─┬───>
          │ └───> context-var . * ───┘ │
          └────────────── , <──────────┘

 Also see STORE syntax for example of using PRINT...RDB$DB_KEY in RDO
 within a STORE...END_STORE block.

Additional information available:

value-exprcontext-var

 A valid Rdb/VMS value expression.  Request HELP on Value_expr for
 more information.

 A context variable you have defined in a FOR or START_STREAM
 statement.  Use a context variable and a wildcard character (*) to
 display all the fields for each record in the record stream.  If you
 use the wildcard character, RDO uses the field names as column
 headers on the display.

 Example 1

 Retrieve all the field values from one or more relations

 RDO> START_TRANSACTION READ_ONLY
 RDO>
 RDO>  FOR E IN EMPLOYEES
 cont>  PRINT E.*
 cont> END_FOR
 RDO>
 RDO> COMMIT

 You can use the wildcard character (*) to display all fields from one
 or more relations named in your RSE.  RDO displays the names of the
 fields as column headers and displays the corresponding field values
 beneath them.  When you use the wildcard character, you cannot
 display values for segmented strings, literals, or statistical
 expressions.

 This RDO query displays all the field values from each record in the
 EMPLOYEES relation.


 Example 2

 Retrieve values from named fields in a relation:

 RDO> START_TRANSACTION READ_ONLY
 RDO>
 RDO>  FOR E IN EMPLOYEES
 cont>  PRINT E.LAST_NAME, E.FIRST_NAME, E.MIDDLE_INITIAL
 cont> END_FOR
 RDO>
 RDO> COMMIT

 This RDO query displays field values from each record in the
 EMPLOYEES relation.


 Example 3

 Retrieve values from fields in two relations:

 RDO> START_TRANSACTION READ_ONLY
 RDO>
 RDO>  FOR E IN EMPLOYEES CROSS JH IN JOB_HISTORY
 cont>   OVER EMPLOYEE_ID
 cont>   WITH JH.JOB_END MISSING
 cont>   PRINT E.LAST_NAME, JH.JOB_CODE
 cont> END_FOR
 RDO>
 RDO> COMMIT

 This RDO statement performs a join of two relations and uses PRINT to
 display a value from each.  The result is the last name and current
 job code of each employee.


 Example 4

 Retrieve the result of a statistical expression:

 RDO> START_TRANSACTION READ_ONLY
 RDO>
 RDO> PRINT COUNT OF E IN EMPLOYEES WITH
 cont> E.STATE = "MA"
 RDO>
 RDO> COMMIT

 This example retrieves the number of employees who live in
 Massachusetts.