This article supporting the source code download
First, the preface
At present, many units in the system transformation and upgrading, faced with the development of various independent departments of the application of the database unified to adapt to the needs of large concentration of data, to facilitate future data mining and other high-level applications. In the process of database unification, how to transform the existing program based on heterogeneous database quickly and efficiently, e
VLDB system.
Sybase's VLDB Solution
Sybase, as a major database software supplier, has extensive experience in establishing and implementing VLDB systems worldwide and covers many industries such as finance, telecommunications, transportation, and manufacturing. Based on user requirements and VLDB requirements for database systems, Sybase's VLDB solution consists of three parts: VLDB database storage technology, VLDB database performance optimization
SQL statement implementation that limits the number of data queries in ORACLE and SYBASE databases
I. OverviewFor some software that needs to deal with a large amount of data through databases, processing performance is very important. In order to ensure that the software can process all data without crashing, the idea of batch processing came into being. The specific method of batch processing is to compile an SQL statement. Each time a specified num
Sybase in the United States provides the company's Enterprise database software for free for Linux "Adaptive Server Enterprise (ASE) Express Edition for Linux ". This is what Sybase revealed on August 1, September 8. "Small-scale enterprises and developers can develop, test, and import new application software without having to pay the license fee, and enjoy products with high performance ." (The Company)
How the replication server works
The operation of the SYBASE replication server product is as follows:
Data Replication in StandBy mode
Generally, the data on the replication node changes with the master node. Can I switch to the replication node if an error occurs on the master node? Can the SYBASE Replication Server be used in a hot standby mode?
In the SYBASE
SQL statement implementation that limits the number of data queries in ORACLE and SYBASE databases. oraclesybase
I. Overview For some software that needs to deal with a large amount of data through databases, processing performance is very important. In order to ensure that the software can process all data without crashing, the idea of batch processing came into being. The specific method of batch processing is to compile an SQL statement. Each time
Sybase is one of the well-known products in the sqldatabase management system.
Http://baike.baidu.com/view/118488.html? WTP = TT
Http://zhidao.baidu.com/question/3087017.html? SI = 1 WTP = wk
ISQL: interactive SQL/interactive Structured Query Language tool======================================Sybase Adaptive Server Anywhere is used to send SQL statements to the database server.Program. You can
How the replication server works
The operation of the Sybase replication server product is as follows:
Data Replication in standby mode
Generally, the data on the replication node changes with the master node. Can I switch to the replication node if an error occurs on the master node? Can the Sybase Replication Server be used in a hot standby mode?
In the Sybase
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---- Keyword: Sybase Central proxy database proxy table proxy Database
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Problem
This function library is almost exactly the same as the SQL Server database function library, which is actually the first occurrence of this function before the SQL Server database function library appears.
Sybase and MS SQL Server 6.x are almost identical to the user's point of view. Of course, the difference after MS SQL Server 7.0 is quite large.
Sybase_affected_rows: Gets the number of columns affected by the last query.Sybase_close: Closes the
information and can conveniently carry on the mutual reference, promotes the judicial justice.
3. Realize the electronic file management, through the network access to archives, reduce the frequency of the use of electronic materials, to ensure the safety of archival materials, simplifying maintenance work.
4. Through e-mail and other means of instruction, reporting and approval, to reduce the burden on the handling of personnel, improve work efficiency.
Solution
November 2001, the world fa
Sybase IQ has always been known for its export-import performance, and it is not easy to use it well. Recently I have studied this, summarized as follows, for reference only.1. PrefaceSybase IQ is a powerful ad hoc query server. Use Sybase IQ to isolate Decision support systems (Dss,decision supports System,reader) and online transaction processing systems (Oltp,online Transaction processing,writer).
The company's database has been Sybase, it is also very good, the latest customer scene appeared a problem, the data can not be transmitted, look at the log is very simple, a bit to locate the reason. It is simple, with more than 2000 parameters, because this function queries the child table based on the primary key of the primary table, using the Where primary table ID in (?,?,?,?......) Way, the parameter question mark is up to 2000, but it is stran
Tags: linux sybase pyodbc FreeTDS unixodbc RhelOperating system is RHEL6.2
Installing UNIXODBC and dependent packagesYum-y install gcc gcc-c++ unixodbc unixodbc-devel python-devel
Installing FreeTDSTar XF freetds-stable.tgzCD freetds-0.91/./configure--prefix=/usr/local/freetds--with-unixodbc=/usr/--with-tdsver=5.0MakeMake install
Configure FREETDS and use TSQL to test the connectionVim/usr/local/freetds/etc/freetds.confAdd the following conten
I. OverviewFor some software that needs to deal with large amounts of data through a database, processing performance is quite important. In order to ensure that the software can finish all the data without crashing, the idea of batch processing came into being. The specific method of batch processing is to write SQL statements, each return the specified number of data to the software processing, after this batch of data processing, then the next batch.This paper demonstrates how to write batch-
The following operations are performed by Sybase users:
Create a script file, such as/Sybase/script/dump. Sh.The category is as follows:$ Cat dump. Sh/Sybase/OCS-12_5/bin/iSQL-USA-P ********-s ******-I/Sybase/script/dump. SQL-O/sybse/script/dump. logMV/caiwubackup/backup/cwbase1.bak/caiwubackup/backup/cwbase1 _ 'date +
After sybase 12.5.4 is installed on RedHat as 4 and Initialization is complete, run isql-Usa-P to report the error:
The context allocation routine failed when it tried to load localization files !!One or more following problems may caused the failure
Your sybase home directory is/opt/sybase-12.5. Check the environment variable
Chinese garbled characters occur when Sybase is used. The Chinese Character Set cp936 is loaded.
(The installation path of Sybase is c: \ Sybase)
1. c: \> CD \ Sybase \ charsets \ cp936
2. c: \ Sybase \ charsets \ cp936> charset-USA-psa_pass-sserver_name binary. srt cp9
How Replication Servers work
The diagram of the Sybase Replication Server product operation is as follows:
Data replication in StandBy mode
In general, replication node data changes following the master node. Can you switch to a replication node if there is an error in the primary node? Can Sybase replication servers be similar to dual-machine hot standby mode?
In the
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