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SQL> / old new 4: where 4: where unique_session_id = upper('&unique_session_id') unique_session_id = upper('01800B510001')
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ID ---------203 204 205 206 SQL> / old new
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TEXT ---------------------------------------------------before the loop loop 1 before sleep loop 1 after sleep loop 2 before sleep
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4: where 4: where
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unique_session_id = upper('&unique_session_id') unique_session_id = upper('01800B510001')
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ID ---------203 204 205 206 207 208 209 210 211 212 213 214
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TEXT ---------------------------------------------------before the loop loop 1 before sleep loop 1 after sleep loop 2 before sleep loop 2 after sleep loop 3 before sleep loop 3 after sleep loop 4 before sleep loop 4 after sleep loop 5 before sleep loop 5 after sleep loop 6 before sleep
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12 rows selected. SQL> / old new 4: where 4: where unique_session_id = upper('&unique_session_id') unique_session_id = upper('01800B510001')
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ID ---------203 204 205 206
TEXT ---------------------------------------------------before the loop loop 1 before sleep loop 1 after sleep loop 2 before sleep
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207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
loop 2 after sleep loop 3 before sleep loop 3 after sleep loop 4 before sleep loop 4 after sleep loop 5 before sleep loop 5 after sleep loop 6 before sleep loop 6 after sleep loop 7 before sleep loop 7 after sleep loop 8 before sleep loop 8 after sleep loop 9 before sleep loop 9 after sleep loop 10 before sleep loop 10 after sleep after the loop
22 rows selected. As you can see from the preceding output, I reexecuted the SQL SELECT statement three times (using the forward slash, /) during the 33 seconds it took to run the test unit, and I got more debug information as the program unit executed. If you examine Listing 7-8, which I used to query the table DEBUG_OT, you can see that I am limiting the information to a specified unique session ID and for the last ten minutes (the expression (10/(24*60)) means ten minutes). Listing 7-8. An Example of How to Check on Progress in Real Time, debug_ot.sql 01 02 03 04 05 06 07 08 09 10 11 12 rem debug_ot.sql rem by Donald J. Bales on 12/15/2006 rem Query DEBUG_OT the specified unique session ID define unique_session_id=&1; select id, text from DEBUG_OT where unique_session_id = upper('&unique_session_id') and insert_date > SYSDATE (10/(24*60)) order by id;
A debug table can be very handy. It gives you the kind of information you get from put_line(), but as it happens. Now you can just add the following command to your code as needed: DEBUG_O.set_text(<aiv_program_unit>, <aiv_text>);
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However, you ll need to wrap set_text() in an IF statement if you want to turn it on or off as needed. I have a better solution. How about a debug package
A DEBUG Package
I m going to create a DEBUG_OTS package in order to extend the table DEBUG_OT and its underlying TYPE DEBUG_O s functionality. I have two methods that I wasn t able to add to TYPE DEBUG_O, because there s no way to maintain temporary state in a TYPE s BODY. That s not the case for a package, so I m going to create a table package DEBUG_OTS for table DEBUG_OT, which will implement methods disable(), enable(), and a conditional set_text(). Method enable() will add a specified program unit to a list of program units for which to log debug information to table DEBUG_OT. If a program calls DEBUG_OTS.enable(), passing its name, then any calls to DEBUG_OTS.set_text() will be logged to table DEBUG_OT. If a program doesn t enable debug logging, nothing will happen when it calls DEBUG_OTS.set_text(). Conversely, method DEBUG_OTS.disable() will remove a specified program unit from the debug logging enabled list. Listing 7-9 is the package specification, and Listing 7-10 is its corresponding package body. Listing 7-9. A Table Package Specification for Object Table DEBUG_OT, debug_ots.pks 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 create or replace package DEBUG_OTS as /* debug_ots.pks by Donald J. Bales on 12/15/2006 Object Table DEBUG_OT's package */ -- Disable debug logging for the specified program unit PROCEDURE disable( aiv_program_unit in varchar2); -- Enable debug logging for the specified program unit PROCEDURE enable( aiv_program_unit in varchar2); -- Conditionally log the debug information for the specified -- program unit, if it is enabled PROCEDURE set_text( aiv_program_unit in varchar2, aiv_text in DEBUG_OT.text%TYPE);
end DEBUG_OTS; / @se.sql DEBUG_OTS;
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