--____CIVUFTDKZVQDOGJWYCGU____ Content-Type: multipart/alternative; boundary="____HALPYZPZYFFYCGAKLKOY____"
--____HALPYZPZYFFYCGAKLKOY____ Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable I have a question about using bind variables. It is my understanding that = bind variables are to be used to keep the same SQL from being reparsed and = keeping multiple copies in the SGA, thus *speeding* things up. I also = understand that by using bind variables that the CBO will not be able to = optimally use the statistics to determine the most effective path to = retrieve data. Some documentation states to use hints when you are using = bind variables to tell the CBO which path to take. Other documentation = states that bind variables don't like the CBO and to use the RBO. After we looked at the library cache and saw thousands of copies of the = same sql, and hundreds of different sql, we decided to look into converting= certain web pages to bind variables. After we converted to using bind = variables, the pages that once took < 5 seconds to load all of the sudden = took > 2 minutes to load. The db server was pegged at 100% from 8-5 every = day while this application was being used. We have converted back to = literals and the pages are loading quickly again. While on bind variables,= we used every possible hint except RULE and had no luck. We didn't want = to resort to using the RULE hint because oracle claims not to use the RBO = (because of no further enhancements and possibly phasing it out), and to = start using the CBO for everything. There are so many confusing documents regarding the use of bind variables. = I wanted to see what the oracle community is doing in regards to using = bind variables and what their experiences are. TIA Danny Hughes DBA Knobias.com [EMAIL PROTECTED] www.knobias.com --____HALPYZPZYFFYCGAKLKOY____ Content-Type: multipart/related; boundary="____KMQGUMGTJRAMPYVFBAEF____" --____KMQGUMGTJRAMPYVFBAEF____ Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable I have a question about using bind variables. It is my understanding that = bind variables are to be used to keep the same SQL from being reparsed and = keeping multiple copies in the SGA, thus *speeding* things up. I also = understand that by using bind variables that the CBO will not be able to = optimally use the statistics to determine the most effective path to = retrieve data. Some documentation states to use hints when you are using = bind variables to tell the CBO which path to take. Other documentation = states that bind variables don't like the CBO and to use the RBO. <br> <br>After we looked at the library cache and saw thousands of copies of = the same sql, and hundreds of different sql, we decided to look into = converting certain web pages to bind variables. After we converted to = using bind variables, the pages that once took < 5 seconds to load all = of the sudden took > 2 minutes to load. The db server was pegged at = 100% from 8-5 every day while this application was being used. We have = converted back to literals and the pages are loading quickly again. While = on bind variables, we used every possible hint except RULE and had no = luck. We didn't want to resort to using the RULE hint because oracle = claims not to use the RBO (because of no further enhancements and possibly = phasing it out), and to start using the CBO for everything. <br> <br>There are so many confusing documents regarding the use of bind = variables. I wanted to see what the oracle community is doing in regards = to using bind variables and what their experiences are. <br> <br>TIA <br> <br>Danny Hughes <br>DBA <br>Knobias.com <br>[EMAIL PROTECTED] <br>www.knobias.com <br> --____KMQGUMGTJRAMPYVFBAEF____-- --____HALPYZPZYFFYCGAKLKOY____-- --____CIVUFTDKZVQDOGJWYCGU____ Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" CONTENT-DESCRIPTION: S/MIME Cryptographic Signature MIIKkwYJKoZIhvcNAQcCoIIKhDCCCoACAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3DQEHAaCCCJ4w ggI8MIIBpaADAgECAgMD6X8wDQYJKoZIhvcNAQEEBQAwgZIxCzAJBgNVBAYTAlpBMRUwEwYDVQQI EwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEPMA0GA1UEChMGVGhhd3RlMR0wGwYD VQQLExRDZXJ0aWZpY2F0ZSBTZXJ2aWNlczEoMCYGA1UEAxMfUGVyc29uYWwgRnJlZW1haWwgUlNB IDIwMDAuOC4zMDAeFw0wMTAxMDUxNTQ3MzdaFw0wMjAxMDUxNTQ3MzdaMEUxHzAdBgNVBAMTFlRo YXd0ZSBGcmVlbWFpbCBNZW1iZXIxIjAgBgkqhkiG9w0BCQEWE2RodWdoZXNAa25vYmlhcy5jb20w XDANBgkqhkiG9w0BAQEFAANLADBIAkEAn8T4J83YTOXIk3iPl8Hpg58yaB/YQk0hWUHIDe26ZCwJ P7MnmKJkyiTRP3Vl7WJdt3SOBuLYsQa4bewJrG5SHQIDAQABozAwLjAeBgNVHREEFzAVgRNkaHVn aGVzQGtub2JpYXMuY29tMAwGA1UdEwEB/wQCMAAwDQYJKoZIhvcNAQEEBQADgYEAloEUXE3MsxSe oNIMwOdM7l+j6zat3yCav2T1s06uBaus9hRgruTGI0+HzkPdjj0zJ4Q2krHO1QzKnRz24vExupK+ 2GR13ldRWLfoDphFJyvBXuI0x2AhPpC+KY04jBojgtKmwX//BoKquodT89CzcDrZaU4FRU5OG7cM Hc4q/c8wggMpMIICkqADAgECAgEMMA0GCSqGSIb3DQEBBAUAMIHRMQswCQYDVQQGEwJaQTEVMBMG A1UECBMMV2VzdGVybiBDYXBlMRIwEAYDVQQHEwlDYXBlIFRvd24xGjAYBgNVBAoTEVRoYXd0ZSBD b25zdWx0aW5nMSgwJgYDVQQLEx9DZXJ0aWZpY2F0aW9uIFNlcnZpY2VzIERpdmlzaW9uMSQwIgYD VQQDExtUaGF3dGUgUGVyc29uYWwgRnJlZW1haWwgQ0ExKzApBgkqhkiG9w0BCQEWHHBlcnNvbmFs LWZyZWVtYWlsQHRoYXd0ZS5jb20wHhcNMDAwODMwMDAwMDAwWhcNMDIwODI5MjM1OTU5WjCBkjEL MAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UEBxMJQ2FwZSBUb3duMQ8w DQYDVQQKEwZUaGF3dGUxHTAbBgNVBAsTFENlcnRpZmljYXRlIFNlcnZpY2VzMSgwJgYDVQQDEx9Q ZXJzb25hbCBGcmVlbWFpbCBSU0EgMjAwMC44LjMwMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB gQDeMzKmY8cJJUU+0m54J2eBxdqIGYKXDuNEKYpjNSptcDz63K737nRvMLwzkH/5NHGgo22Y8cNP omXbDfpL8dbdYaX5hc1VmjUanZJ1qCeu2HL5ugL217CR3hzpq+AYA6h8Q0JQUYeDPPA5tJtUihOH /7ObnUlmAC0JieyUa+mhaQIDAQABo04wTDApBgNVHREEIjAgpB4wHDEaMBgGA1UEAxMRUHJpdmF0 ZUxhYmVsMS0yOTcwEgYDVR0TAQH/BAgwBgEB/wIBADALBgNVHQ8EBAMCAQYwDQYJKoZIhvcNAQEE BQADgYEAcxtvJmWL/xU0S1liiu1EvknH6A27j7kNaiYqYoQfuIdjdBxtt88aU5FL4c3mONntUPQ6 bDSSrOaSnG7BIwHCCafvS65y3QZn9VBvLli4tgvBUFe17BzX7xe21Yibt6KIGu05Wzl9NPy2lhgl TWr0ncXDkS+plrgFPFL83eliA0gwggMtMIIClqADAgECAgEAMA0GCSqGSIb3DQEBBAUAMIHRMQsw CQYDVQQGEwJaQTEVMBMGA1UECBMMV2VzdGVybiBDYXBlMRIwEAYDVQQHEwlDYXBlIFRvd24xGjAY BgNVBAoTEVRoYXd0ZSBDb25zdWx0aW5nMSgwJgYDVQQLEx9DZXJ0aWZpY2F0aW9uIFNlcnZpY2Vz IERpdmlzaW9uMSQwIgYDVQQDExtUaGF3dGUgUGVyc29uYWwgRnJlZW1haWwgQ0ExKzApBgkqhkiG 9w0BCQEWHHBlcnNvbmFsLWZyZWVtYWlsQHRoYXd0ZS5jb20wHhcNOTYwMTAxMDAwMDAwWhcNMjAx MjMxMjM1OTU5WjCB0TELMAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UE BxMJQ2FwZSBUb3duMRowGAYDVQQKExFUaGF3dGUgQ29uc3VsdGluZzEoMCYGA1UECxMfQ2VydGlm aWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjEkMCIGA1UEAxMbVGhhd3RlIFBlcnNvbmFsIEZyZWVt YWlsIENBMSswKQYJKoZIhvcNAQkBFhxwZXJzb25hbC1mcmVlbWFpbEB0aGF3dGUuY29tMIGfMA0G CSqGSIb3DQEBAQUAA4GNADCBiQKBgQDUadfUsJRkW3HpR9gMUbbqcpGwhF59LQ2PexLfhSV1KHQ6 QixjJ5+Ve0vvfhmHHYbqo925zpZkGsIUbkSsfOaP6E0PcR9AOKYAo4d49vmUhl6t6sBeduvZFKNd bnp8DKVLVX8GGSl/npom1Wq7OCQIapjHsdqjmJH9edvlWsQcuQIDAQABoxMwETAPBgNVHRMBAf8E BTADAQH/MA0GCSqGSIb3DQEBBAUAA4GBAMfskn5O+PWWpWdiKqTwTRFg0G+NYFhhrCa7UjVcCM8w +6hKloofYkIjjBcP9LpknBesRynfnZhe0mxgcVyirNx54+duAEcftQ0o6AKd5Jr9E/Sm2Xyx+Nxf IyYJkYBz0BQb3kOpgyXy5pwvFcr+pquKB3WLDN1RhGvk+NHOd6KBMYIBvTCCAbkCAQEwgZowgZIx CzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEP MA0GA1UEChMGVGhhd3RlMR0wGwYDVQQLExRDZXJ0aWZpY2F0ZSBTZXJ2aWNlczEoMCYGA1UEAxMf UGVyc29uYWwgRnJlZW1haWwgUlNBIDIwMDAuOC4zMAIDA+l/MAkGBSsOAwIaBQCggbowGAYJKoZI hvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMDExMDE5MTIyNTM3WjAjBgkqhkiG 9w0BCQQxFgQU3vwcV0TcDDLoMi5+wTvkDNbUdxkwWwYJKoZIhvcNAQkPMU4wTDANBggqhkiG9w0D AgIBKDAOBggqhkiG9w0DAgICAIAwCgYIKoZIhvcNAwQwDQYIKoZIhvcNAwICAUAwBwYFKw4DAgcw BwYFKw4DAhowDQYJKoZIhvcNAQEBBQAEQDuCiN4lfx9MA2lqIEIVUEt1K7xwOEJ/34UTLtCMkhsN Gg+WQMXB//YNdd9OY/Q1asVeSwn2p1ufm63qedRj3YQ= --____CIVUFTDKZVQDOGJWYCGU____-- -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Danny Hugh INET: [EMAIL PROTECTED]>"<[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). 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