Question

I am using Oracle SQL (in SQLDeveloper, using the SQL Worksheet). I would like to print a statement before my select, such as

PRINT 'Querying Table1'; SELECT * from Table1; 

What do I use to Print / show text output? It’s not Print, because that gives me the error: Bind Variable Table1 is NOT DECLARED. DBMS_OUTPUT.PUT_LINE is an unknown command. (Obviously, I’m an inexperienced SQLDeveloper and Oracle user. There must be some synonym for Print, but I’m having trouble finding help on it without knowing what it is.)

Answer 1

for simple comments:

set serveroutput on format wrapped; begin     DBMS_OUTPUT.put_line('simple comment'); end; /  -- do something  begin     DBMS_OUTPUT.put_line('second simple comment'); end; / 

you should get:

anonymous block completed simple comment  anonymous block completed second simple comment 

if you want to print out the results of variables, here’s another example:

set serveroutput on format wrapped; declare a_comment VARCHAR2(200) :='first comment'; begin     DBMS_OUTPUT.put_line(a_comment); end;  /  -- do something   declare a_comment VARCHAR2(200) :='comment'; begin     DBMS_OUTPUT.put_line(a_comment || 2); end; 

your output should be:

anonymous block completed first comment  anonymous block completed comment2