Tags: order margin fast BAE data param code BSP BER
databae = physical files, logical structures that compose physical files
View database name
Sql> Show Parameter Db_nam NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ Db_name string Gaga01 Sql> select name from V$database; NAME --------- GAGA01 Sql> To view the instance name: Sql> Show
Note: Create Table test03, switch logs, create table test04, switch logs, delete all data files, restore all backup data files, and do not need to restore control files; the archive log of test03 is not lost, and the archive log of test04 is lost. test041 cannot be restored, and all control files of the database are lo
SqlServer modifies the storage location of database files and log files, and SQL server log files
-- View the current storage location select database_id, name, physical_name AS CurrentLocation, state_desc, size from sys. master_files where database_id = db_id (N 'database name'); -- modify the storage location of the file to take effect next time -- testDb indic
1. OBJ fileProgrammers write programs by writing a binary file. If we declare a variable char C, that is, the Declaration requires an 8-bit space, then we need to declare to the system that the 8-bit space is reserved. How can we do this? It is to compile a special binary file-OBJ file. The execution file obtained by using the C language compiled by GCC contains not only CPU commands, but also a lot of other information, it has many coff, elf ...... In the last compilation process, the linker LD
Introduce as few header files as possible in Class header files
Like C and C ++, Objective-C uses header files and implementation files to separate code. The standard method for compiling "class" in Objective-C language is to create two files by using the class name as the
Prohibit computer sharing of files, prohibit domain users from sharing files, prohibit sharing computer filesTo disable network sharing, disable network sharing, and prohibit users from sharing folders, use the following methods:First, check whether the shared file is set on the computer. The method is simple. Start-run-cmd, press enter, and enter "net share" under the doscommand, as shown in:So how to disa
PHP $ _ FILES: upload FILES normally in Windows, but FILES cannot be uploaded in Ubuntu
The following source code can be used to upload files normally in Windows Apache, but no error is reported in Ubuntu Linux, but the file cannot be uploaded to the specified directory.How can this problem be solved.Thank you!
In some cases, you need to relocate multiple Oracle data files and log files or migrate them to new partitions or locations, such as insufficient disk space or special requirements. In this case, you can migrate multiple data files or log files in batches. Of course, Backup recovery is also one of the methods. This doc
The next is the batch of the backup, added to the scheduled task, set the time to run automatically
Copy Code code as follows:
@echo off
REM Format Date
REM date is "2006-02-22 Wednesday" and cannot be used directly, so you should format it first.
REM becomes what we want. date:~0,4 means to intercept 4 characters starting from 0.
Set d=%date:~0,4%%date:~5,2%%date:~8,2%
REM Sets the compression program path, which is packaged with WinRAR Rar.exe.
Set Path=c:\program
PHP Learning Notes-Advanced tutorials-read files, create files, write files
Open file: Fopen:fopen (Filename,mode);//fopen ("Test.txt", "R"), open mode: R read-only open, the file pointer to the file header r+ read-write mode open, the file pointer to the file header W write method, point to the file header, If it does not exist then try to create a w+ read-write
To open multiple files: 1.vim has not started yet: Enter in terminal Vim file1 file2 ... filen can open all the files you want to open 2.vim has started Input : Open File A file can be opened again, and the contents of the file will be displayed in Vim at this time. Display multiple files at the same time: : Split : Vsplit To switch between
Package files, download ZipArchive files that come with PHP, and download the packaged files.
Summary:
Four headers () are required for downloading files using PHP. For more information, see my other blog post:Detailed process analysis on how PHP implements the download function
When calculating the file si
The CHM is a shorthand for English "Compiled help Manual", which is "compiled helper Files". CHM is a new generation of Microsoft's Help file format, using HTML as the source text, the Help content in a similar database compiled storage.The advantages of CHM files are lightweight, convenient, read-only, etc., through the directory, can be conveniently located in the file location, but it also has a big flaw
To understand the role of each file, you must master the basic concepts of Oracle.
I. backup and recovery of Oracle basic files
1. logfile diversification and Backup Recovery
Log query
Select * from v $ logfile;
Select * from v $ log;
Manually switch logs
Alter system switch logfile;
Manual checkpoint
Alter system checkpoint;
Alarm Log File
Show paramter dump
$ ORACLE_BASE/admin/orcl/bdump
Tail-f alert *. log
Diversified log
Python Implementation of reading files by line [reading small files and large files ],
This example describes how to read files by row in Python. We will share this with you for your reference. The details are as follows:
Small file:
# Coding = UTF-8 # author: walker # date: 2013-12-30 # function: read small
Open File: Fopen:fopen (Filename,mode);//fopen ("Test.txt", "R");Open mode: R read-only open, the file pointer to the file header r+ read-write mode open, the file pointer to the file header W write method, point to the file header, if not present, try to create w+ Read-write mode, point to the file header, if it does not exist then try to create a write mode open, point to the end of the file, if not exist then try to create a + read-write mode open, point to the end of the file, if not present
'-------------------------------------------' Get all the Excel files under a folder '-------------------------------------------Sub Getexcelfile (Sfolderpath as String) on Error Resume Nextdim F as StringDim file () as StringDim xk = 1ReDim file (1) file (1) = Sfolderpath "\" F = Dir (file (1) "*.xlsx") ' wildcard ' * * denotes all files, *.xlsx Excel file do Until f = "" Range ("a" x) = f Range ("a"
In Windows CE, the SDK contains other files (add additional. H files and. Lib files)
Method: when generating the SDK, choose platform> SDK> Configure SDK and select splash screen from the opened SDK setting, if you select Show OEM splash screen at SDK installat and select a BMP image in the text box below, you can display the set image when installing the SDK. S
SWF files cannot access local resources. Only SWF files in the file system and trusted local SWF files can access local resources. [reprint]
Article category: Flash ProgrammingError message: securityerror: Error #2148: SWF file D: \ demo \ test \ index.swf cannot access local resources D: \ demo \ test \ bin-Debug \ textlayout_4.0.0.10485.swf. Only the SWF
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