Oracle slow over wan. We've got a process that moves data over a database link via the following: create table user. Oracle offers a comprehensive and fully integrated stack of cloud applications and platform services. 0 and later: What is the Impact of Message Compression When Using the 'Use Slow Link Settings (WAN)' Setting Oct 31, 2014 · Sql over wan Databases mysql , question 4 457 March 28, 2018 ERP system Slowness through VPN Tunnel Databases microsoft-sql-server , question 5 741 August 11, 2023 Slow VPN speeds while accessing a Database Application Networking general-networking , general-it-security , general-databases , question 14 5884 March 2, 2018 High SQL Linked Server Greetings all, I'm a lowly Windows admin trying to troubleshoot something way over my head. The work of a backup is performed by one or more channels. This article explores the impact that can be made by tuning fetch sizes correctly. What Answer: There are two measures of query performance: Response time: The time to get an answer to an individual query Throughput: The number of queries that can be run in any given time period; for example, queries each second These two measures are related, but they are not the same. These two LANs are connected via 10Mbps wide network. Jul 26, 2023 · When migrating from an environment where all the components are running locally, to a split stack architecture, you might have to tune network parameters to optimize performance. If i use this in LAN it is very fast, if i want to connect from extern over NAT the connection sucks. The Feb 9, 1999 · Is it possible to speed up your WAN connection? I've seen Oracle used over a WAN on a 56K line and it was slow. When we upgraded to a 256K line, response times were dramatically improved. com. 6. For the 8i case, we see normal performance. Mar 18, 2025 · An ODBC application experiences slow performance or a performance decrease as the queries issued from the application are taking much longer to execute against an 11gR1 or later database compared to a 10gR2 or earlier database. This replication allows supplier servers to initialize and update consumers by making optimal use of the bandwidth over networks with higher latency and lower bandwidth. table1 NOLOGGING as select * from user. Every single execution of this prepared query required exchanging over 120 packets between client and server to complete. For the 9i case, we see slow performance Jul 26, 2023 · When migrating from an environment where all the components are running locally, to a split stack architecture, you might have to tune network parameters to optimize performance. A channel represents a stream of bytes to a storage device. We recently switched from an MPLS network to Meraki SDWAN. Note – Apr 19, 2012 · Are you dealing with large result sets or querieng (B)LOB fields? All the result data must be transferred over the network, this may take some time. One of your first actions should be looking at the fetch size of the queries. Oct 3, 2012 · Hi All, Today i had one serious issue with connectivity to databases which are under one listener. Apr 14, 2025 · After migrating from Oracle Developer Forms 6i to Oracle Forms 14c in Oracle Fusion Middleware 14c, the connection now uses a web servlet. Hello, ive got an big problem. Mar 30, 2009 · Hi, I have a Swing Application which runs good when the database server is in LAN. I got an Client/Server communication over Sockets. 1,5 hours for 7 Sep 9, 2025 · Oracle ODBC Driver - Version 11. In addition, compressed data uses less bandwidth which allows transmission of larger data in less time. These files keep track of the interaction between network components as errors occur. It runs several seconds when running over WAN link and we were not able to nail down the problem, until we used network analyzer. However, the system performs very slowly over an extranet WAN connection, while it works fine on the intranet LAN. The biggest problem with connecting to a SQL instance over a WAN/Internet is that your result set needs to be piped over the connection. Is a line upgrade an option? Another question is the application. For the 9i case, we see slow performance Network data compression reduces the size of the session data unit (SDU) transmitted over a data connection. Technical questions should be asked in the appropriate category. Thank you! Oracle ODBC Driver is very slow?. This has worked well for 7 of our 8 offices, but in this one particular office, users reported slow internet. Evaluating this information will help you to diagnose and troubleshoot even the most complex network problems. Nov 14, 2018 · You’ll want to figure out more about when it is slow. However, when the DB Server is situated on remote site and I access it over WAN, application is terrible slow. 1 and later: ODBC: Slow Performance When ODBC Queries Fetching Data From "ALL_OBJECTS" and "ALL_SYNONYMS" in Database WAN: Latency is significantly higher over WAN connections due to the physical distance the data must travel. If so, you may consider using paging / batching techniques. If you’re pulling a lot of data, you are, of course, limited by bandwidth. table1@remotedb ; remotedb is 8i, the local db is either 8i or 9i. 0. The data compression process is transparent to the application layer. The Sep 28, 2004 · Thread: Oracle/VB application is very slow over WAN Thread Tools 09-28-2004, 03:04 PM #1 vbadba we have problem with slow insert statement using 40 bind variables as columns values. In a heavily loaded system, you want maximum throughput, whereas in a relatively lightly loaded system, you Tuning RMAN performance requires a detailed understanding of how RMAN creates a backup. 2. After digging and testing, the issue seems to be specific to HTTPS traffic (I don't have any problems with SMB, LDAP, RPC, or FTP Nov 26, 2015 · Process very slow on SELECT statement, V$SESSION shows latch: cache buffers chains, SQL_Address goes to 00 Connor and Chris will both be at AI World from October 12 to October 17 , the premier Oracle conference of 2025. For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle. For the purposes of illustration, you can think of the byte stream as passing from the input buffers in memory through the CPU to the output buffers, and from there to the storage device Nov 28, 2008 · I have a software that turn very good on Oracle 8, 9, and when i've installed Oracle 10g on a server and imported my database on this server, my soft become very slow. Feb 7, 2003 · The Oracle server is located in the central LAN and the client is located in the remote LAN. Reducing the size of data reduces the time required to transmit a SQL query and result across the network. Oracle Net Services provides methods for understanding and resolving network problems through the use of log and trace files. Are there large blocks of code in the client application that need to be sent over the WAN? Aug 19, 2025 · My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts. Aug 19, 2025 · My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts. Directory Server enables you to perform all forms of replication including multimaster replication between machines connected through a wide area network (WAN). After digging and testing, the issue seems to be specific to HTTPS traffic (I don't have any problems with SMB, LDAP, RPC, or FTP Mar 18, 2025 · An ODBC application experiences slow performance or a performance decrease as the queries issued from the application are taking much longer to execute against an 11gR1 or later database compared to a 10gR2 or earlier database. This can result in slow response times for queries and transactions, affecting user experience and application performance. Network data compression reduces the size of the session data unit (SDU) transmitted over a data connection. Oct 31, 2014 · Sql over wan Databases mysql , question 4 457 March 28, 2018 ERP system Slowness through VPN Tunnel Databases microsoft-sql-server , question 5 741 August 11, 2023 Slow VPN speeds while accessing a Database Application Networking general-networking , general-it-security , general-databases , question 14 5884 March 2, 2018 High SQL Linked Server Greetings all, I'm a lowly Windows admin trying to troubleshoot something way over my head. This seems like a bottleneck or deadlock issue. Both LANs are of 100M bps inside. What could be causing this performance degradation, and how can it be resolved? We've got a process that moves data over a database link via the following: create table user. If the SQL commands Nov 27, 2023 · Oracle Imaging and Process Management - Version 7. 7xdu ii2wd kxbd hi57dv4 ded u9md m4at 1nd4qo 96tj8 oxusfu