How can i select the value of an ENV variable from PL/SQL?
Thanks in advance to all who'll reply. Bye -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Francesco Cantisano INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re[2]: For i (Select..)
You can do all three, but if you do not declare it you can't use the 'for update of' clause. Of course the 'for i in ()loop' does replace a lot of lines of code. Dick Goulet Reply Separator Author: Steve Smith [EMAIL PROTECTED] Date: 10/1/2001 7:50 PM You can also use the for loop - end loop with explicit cursors.. You don't have to define the cursor in the loop itself.. That is my preferred method (defining the cursor in the declare section and referencing it in the for loop).. There really isn't any more work defining the cursor up front and then using the for loop as there is using the for loop and defining the cursor in the loop.. Steve - Original Message - To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent: Monday, October 01, 2001 6:01 PM If you only use a cursor in this manner, the only place that the cursor can be used is in the particular For Loop in which it is defined - it can't be shared by other procedures or functions. If you design and create packaged public cursors, they can be reused from other stored procedures and/or client side programs. Code reuse is just one advantage. When table structures change - as they invariably do - you have only a few cursors to change, instead of a bazillion Cursor For Loops. Also, you can more easily tune a few public cursors. I'd also recommend passing in Table%RowType arguments to your public cursors and specifying that they return Table%RowType records. That further isolates your code from table changes. Jack Jack C. Applewhite Database Administrator/Developer OCP Oracle8 DBA iNetProfit, Inc. Austin, Texas www.iNetProfit.com [EMAIL PROTECTED] (512)327-9068 -Original Message- Zsolt Sent: Monday, October 01, 2001 6:15 PM To: Multiple recipients of list ORACLE-L Hi, If this code is a cursor then why doesn't everybody use it this way? For me it seems a lot simplier and easier than declaring a cursor in a normal way. At 14:50 2001.10.01. -0800, you wrote: the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jack C. Applewhite INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Steve Smith INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re[2]: For i (Select..)
Thank you very much. Your answers explained everything about explicit and implicit cursors. At 07:00 2001.10.02. -0800, you wrote: You can do all three, but if you do not declare it you can't use the 'for update of' clause. Of course the 'for i in ()loop' does replace a lot of lines of code. Dick Goulet Reply Separator Author: Steve Smith [EMAIL PROTECTED] Date: 10/1/2001 7:50 PM You can also use the for loop - end loop with explicit cursors.. You don't have to define the cursor in the loop itself.. That is my preferred method (defining the cursor in the declare section and referencing it in the for loop).. There really isn't any more work defining the cursor up front and then using the for loop as there is using the for loop and defining the cursor in the loop.. Steve - Original Message - To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent: Monday, October 01, 2001 6:01 PM If you only use a cursor in this manner, the only place that the cursor can be used is in the particular For Loop in which it is defined - it can't be shared by other procedures or functions. If you design and create packaged public cursors, they can be reused from other stored procedures and/or client side programs. Code reuse is just one advantage. When table structures change - as they invariably do - you have only a few cursors to change, instead of a bazillion Cursor For Loops. Also, you can more easily tune a few public cursors. I'd also recommend passing in Table%RowType arguments to your public cursors and specifying that they return Table%RowType records. That further isolates your code from table changes. Jack Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
For i (Select..)
Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Thank you Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: For i (Select..)
the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Thank you Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). __ Do You Yahoo!? Listen to your Yahoo! Mail messages from any phone. http://phone.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: For i (Select..)
The 'For I in...' is an implicit cursor To define/declare a cursor is explicit. I've used both. The 'For i in...' is down, dirty and very fast. -Original Message- Sent: Monday, October 01, 2001 3:50 PM To: Multiple recipients of list ORACLE-L the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Thank you Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). __ Do You Yahoo!? Listen to your Yahoo! Mail messages from any phone. http://phone.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: John Lewis INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: For i (Select..)
Hi, If this code is a cursor then why doesn't everybody use it this way? For me it seems a lot simplier and easier than declaring a cursor in a normal way. At 14:50 2001.10.01. -0800, you wrote: the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: For i (Select..)
I think you have more 'control' over the explicit cursor. I've seen some nifty little tricks with explicit cursors. -Original Message- Sent: Monday, October 01, 2001 4:15 PM To: Multiple recipients of list ORACLE-L Hi, If this code is a cursor then why doesn't everybody use it this way? For me it seems a lot simplier and easier than declaring a cursor in a normal way. At 14:50 2001.10.01. -0800, you wrote: the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: John Lewis INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: For i (Select..)
If you only use a cursor in this manner, the only place that the cursor can be used is in the particular For Loop in which it is defined - it can't be shared by other procedures or functions. If you design and create packaged public cursors, they can be reused from other stored procedures and/or client side programs. Code reuse is just one advantage. When table structures change - as they invariably do - you have only a few cursors to change, instead of a bazillion Cursor For Loops. Also, you can more easily tune a few public cursors. I'd also recommend passing in Table%RowType arguments to your public cursors and specifying that they return Table%RowType records. That further isolates your code from table changes. Jack Jack C. Applewhite Database Administrator/Developer OCP Oracle8 DBA iNetProfit, Inc. Austin, Texas www.iNetProfit.com [EMAIL PROTECTED] (512)327-9068 -Original Message- Zsolt Sent: Monday, October 01, 2001 6:15 PM To: Multiple recipients of list ORACLE-L Hi, If this code is a cursor then why doesn't everybody use it this way? For me it seems a lot simplier and easier than declaring a cursor in a normal way. At 14:50 2001.10.01. -0800, you wrote: the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jack C. Applewhite INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: For i (Select..)
as others have said, you can't reuse this cursor, or use it anywhere else. --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, If this code is a cursor then why doesn't everybody use it this way? For me it seems a lot simplier and easier than declaring a cursor in a normal way. At 14:50 2001.10.01. -0800, you wrote: the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Csillag Zsolt INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). __ Do You Yahoo!? Listen to your Yahoo! Mail messages from any phone. http://phone.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: For i (Select..)
You can also use the for loop - end loop with explicit cursors.. You don't have to define the cursor in the loop itself.. That is my preferred method (defining the cursor in the declare section and referencing it in the for loop).. There really isn't any more work defining the cursor up front and then using the for loop as there is using the for loop and defining the cursor in the loop.. Steve - Original Message - To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent: Monday, October 01, 2001 6:01 PM If you only use a cursor in this manner, the only place that the cursor can be used is in the particular For Loop in which it is defined - it can't be shared by other procedures or functions. If you design and create packaged public cursors, they can be reused from other stored procedures and/or client side programs. Code reuse is just one advantage. When table structures change - as they invariably do - you have only a few cursors to change, instead of a bazillion Cursor For Loops. Also, you can more easily tune a few public cursors. I'd also recommend passing in Table%RowType arguments to your public cursors and specifying that they return Table%RowType records. That further isolates your code from table changes. Jack Jack C. Applewhite Database Administrator/Developer OCP Oracle8 DBA iNetProfit, Inc. Austin, Texas www.iNetProfit.com [EMAIL PROTECTED] (512)327-9068 -Original Message- Zsolt Sent: Monday, October 01, 2001 6:15 PM To: Multiple recipients of list ORACLE-L Hi, If this code is a cursor then why doesn't everybody use it this way? For me it seems a lot simplier and easier than declaring a cursor in a normal way. At 14:50 2001.10.01. -0800, you wrote: the code IS a cursor --- Csillag Zsolt [EMAIL PROTECTED] wrote: Hi, I've read in Tom Kyte's book the following technique: For i in (Select statement ) Loop Process records here End Loop ; I have tried it and it works great. The question is that what is the difference betwen a cursor and the code above? Which is more efficient? Zsolt Csillag Hungary -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jack C. Applewhite INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Steve Smith INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
