sybase in memory database

1.1 symptom description Failed to allocate shared memory in Oracle. The ALTER log displays the following error message. Errors in file /oracle/db/diag/rdbms/ora01/ora01/trace/ora01_reco_233670.trc: ORA-00604: error occurred at recursive SQL level 1 ORA-04031: unable to allocate 4064 bytes of shared memory ("shared pool","select local_tran_id, global...","sga heap(1,0)","kglsim heap") Sat Jan 15 09:53:11 201

This problem is actually a matter of space and time. As you can imagine, if you store all URLs in the memory, the memory will soon be fully occupied. However, if a file exists, you must operate the file each time you read or add it. This performance consumption is relatively large. Therefore, we can quickly think of the reason why cache appears on the computer. My design philosophy is to create three levels

How can we optimize the memory usage of oracle? For the convenience of development, we want to reduce the memory occupied by oracle at ordinary times. The following describes how to reduce memory usage by adjusting oracle memory parameters. Solution: sqlplus“/assysdba" createpfile='d:/cj.ora'fromspfile; G

Note: This article source: Small yan Kevin "Oracle Database Memory adjustment increased memory "Simulated operating system memory increased from 2G to 8G, adjust the database memory parameters, the example parameter is not as the

(' #{time.strftime ('%f%x ')} '); ") .fetch_row puts "#{h[' host ']}#{item[' itemid ']}#{item[' name ']}#{total} ' endifitem[' name ']=~/available memory/ free=db.query ("Selectmin (Value_max) fromtrends_uintwhereitemid= ' #{item[' itemid '} ' andclock> unix_timestamp (' #{time.strftime ('%f%x ')} '); ") .fetch_row puts "#{h[' host ']}#{item[' itemid ']}#{item[' name ']}#{free} ' endend iffree!=0usage=free.to_s.to_f/total.to _s.to_f*100puts "#{h['

Tags: Official document ble independent data compression span introduction Hash table first time neededThe hottest topic in the database industry this week is memsql, whether "old bottles of new wine" has sparked a lot of debate, and has raised questions about whether product technology is important or DBA. There are some introductions to memsql on the web, mostly from official documents. In this article, Curt Monash, a well-known independent analyst

requirements, in order to give full play to the design efficiency, to achieve the best operating results, the computer hardware and software systems need to carry out a more complete performance testing and optimal configuration, especially the good or bad memory configuration of the system running speed has a decisive role Next, I put forward some understanding and views on how to optimize the memory conf

SQLite tutorial (10): Memory Database and temporary database, sqlite tutorial I. Memory Database: In SQLite, databases are usually stored in disk files. However, in some cases, we can keep the database in the

One, Memory database: In SQLite, a database is usually stored in a disk file. In some cases, however, we can make the database always reside in memory. One of the most common ways is when calling Sqlite3_open (), the database fil

I. Memory Management Mechanism of the SQL Server database. When the database is started, the database engine does not immediately capture the memory size specified by the min parameter in the memory. The SQL Server

use MongoDB as a pure memory database (Redis style) Basic Ideas The use of MongoDB as a memory database (In-memory db), which is not allowing MongoDB to save data to disk, has aroused more and more people's interest. This usage is very practical for the following applicati

Detailed exception:A sqliteconnection object for database '/data/data/.../database/....db ' was leaked! Fix your application to end transactions in progress properly and to close the database when it is no longer neededThe database operation is obviously abnormal, the database