Plsql_ Performance Optimization series 15_oracle Connection Management connection Management

Tags: des style blog color io os using AR java2014-09-25 BaoxinjianI. Summary In the Official document "Oracle Performance Tuning Guide", mention connecting to the database was an expensive operation, which is highly unscalable.Database

PL/SQL Developer Usage Tips Summary

Tags: PL sql Oracle1, PL /SQL Developer Remember login password when using PL/SQL developer, you want PL/ SQL Developer to remember the username and password to log in to Oracle for your convenience; Setup method: PL /SQL Developer

Plsql_ Performance Optimization series 12_oracle Connection Management

Tags: style blog color io os using Java ar Strong2014-09-25 BaoxinjianI. Summary In the Official document "Oracle Performance Tuning Guide", mention connecting to the database was an expensive operation, which is highly unscalable.Database

Chapter 2 User authentication, Authorization, and Security (10): Create a containing database

Tags: SQL Server database Security DBA contains databasesOriginal source: http://blog.csdn.net/dba_huangzj/article/details/39473895, featured catalogue:http://blog.csdn.net/dba_huangzj/article/details/37906349 No person shall, without the consent of

PL/SQL Developer usage tips, shortcut keys

Tags: style blog io os using ar strong for file1, class SQL Plus Windows: File->new->command window, this is similar to Oracle's client tool SQL Plus, but it is much more useful. 2, set the keyword automatic capitalization:

Sqlite3 command line View Chinese garbled problem resolution

Tags: blog http os ar strong data Art div problemThe SQLite library contains a command line named Sqlite3, which allows the user to manually enter and execute SQL commands for the SQLite database. The database we create through the program is

code example of a database stored procedure called by the collector

Tags: collector database stored procedure Code callsThe collector can easily invoke the stored procedure of the database, here is an example to see the specific program. Call a stored procedure with no return value using Oracle 's

Sqlite3 command line View Chinese garbled problem resolution

Tags: sqlite garbled cmdThe SQLite library contains a command line named Sqlite3, which allows the user to manually enter and execute SQL commands for the SQLite database. The database we create through the program is typically located in the

Plsql_oracle the concept and use of external tables (case) (querying data files directly from external tables for section database tablespace)

Tags: des cWeb style blog http color os io use2014-08-25 BaoxinjianI. Summary Oracle external tables are used to access text files other than databases (text file) or Oracle proprietary format files.Therefore, creating an external table does

Recovery method for SQL 2005 log corruption

Tags: os file data line SP on database SQL CSQL in the event of a sudden power outage or abnormal shutdown, a date file error may occur, causing the database to be unhealthy. The recovery database method is as follows1. The database service stops

Basic introduction of Postgres Database

Tags: des style blog http java using OS IORecently, I have been working on a project related to PostgreSQL database, documenting the knowledge that I have learned in this process. About PostgreSQL database online already have too many relevant

DB2 Data types

Tags: http using io file data art ar timeThe built-in data types of the DB2 database are mainly classified as numeric (numeric), string (character string), graphic string (graphic string), binary string (binary strings), or DateTime. There is also a

GDB, core, and segment errors

Tags: style blog color using OS IO file dataTo see if the system allows core files to be generated #ulimit-A Core file size (blocks,-c) 0 Core file size limit is 0 and core file cannot be generatedUse the following command to

. NET Connection Database mode

Tags: des style blog http color using OS IO. NET Connection Database mode1. Connect OracleA oracleclient approach that Microsoft has developed specifically for Oracle databases (typically used)Reference Class Library:

SQL Query Day, this month, this week's record

Tags: des style blog http color using OS strongSELECT * FROM table WHERE convert (Nvarchar, DateAndTime, 111) = CONVERT (Nvarchar, GETDATE (), 111) ORDER by DateAndTime DESCRecord of the Month SELECT * FROM table WHERE DateDiff

Background Multi-task multithreaded breakpoint download

Tags: breakpoints multi-task background multithreadingForgot:Multi-threaded breakpoint download is not very difficult, mainly is three aspects: 1, according to the size of the file and the number of download threads, determine the size of

Manipulating string arrays with fast and slow subscripts

Tags: style blog color ar for SP div problem on1. Remove the extra spaces:e.g.Before:life___is__short___i___use___python_ ' + ' (underline is a space)After:life_is_short_i_use_python ' + ' (to remove the extra space)Remove the space is relatively

WINDOWS10 Technical version, preview version, x86/x64 Simplified Chinese download address

Tags: Simplified chinese download link windows10 win10Windows 10 is Microsoft's next-generation operating system, the Windows Technical,nt kernel is 6.4. The system was released in Technical preview on September 30, 2014 (Eastern Time, Beijing time,

Navi.Soft20.WinForm Operating Manual

Tags: des winform datagridview Style Blog http io os use1 Overview 1.1 Application ScenariosDespite the rapid development of the Internet and the growing number of Internet software, desktop applications are irreplaceable in some areas, such as

Use XCB to write X Window program (05): Use asynchronous mode to communicate with X server and get and set properties of window

Tags: style blog color using OS dataIn the previous example, we never cared whether the function and X server communication were synchronous or asynchronous when the XCB function was called. Because in the previous example, we basically don't care

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