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The example of this article describes the solution to the mediaprovider that cannot write data to an external SD card under Android4.4. Share to everyone for your reference, specific as follows: The Android4.4 platform restricts the use of read and write access to external SD cards. Mediaprovider through the CheckAcce
Test procedure]1. Download an application and open the application;2. Press menu to open the management applicationProgramGo to the SD card and click "application" to view the data moved to the SD card and to the mobile phone memory.Expected results]1. The
What we want to achieve is: enter data into the input box, click on a Write button, the input box to write the data into the SD card, the click on the Read button, the SD card is only the name of the files in the file displayed on
Error:The error content is:Workaround:In Task Manager, turn off all the monitor.exe processes that are open and reopen them.Read user-saved password information1 try{2 File File = new file ("/mnt/sdcard/info.txt");//path of the external SD card3 FileInputStream fis = new FileInputStream (file);4 bufferedreader br = new BufferedReader (new InputStreamReader (FIS));5 String info = br.readline ();6 String Qq=info.split ("# # #") [0];7 String Pwd=info.sp
, because the default is not to open after MySQL is installed, so you can check whether it is turned on If on is on, it will show off if it is not turned on 2. If the case is open A file similar to this will be found in the appropriate directory: 3. Restore the required files because you directly open the binary content that will be displayed Mysqlbinlog C:\Users\Administrator\Desktop\mysql-bin.000042 > Mysql_restore.sql //mysql_ Restore.sql parsing the SQL file Common errors:
failedora-01200:actual file size of 128679 Issmaller than correct size of 340480BlocksOra-01110:data file 2: '/HOME/ORADATA/POWERDES/SYSAUX01.DBF 'Workaround:DD if=/dev/zeroof=/home/oradata/powerdes/sysaux01.dbf bs=8192 count=1 seek=340480 ----------------------------------------------------------------------------------------------------------- -----Original Blog address: http://blog.itpub.net/26230597/viewspace-1484099/Hara Douglas Fir (MCHDBA)----
Logmnr has made many improvements after Oracle 9i. If you do not need to build a flat text file, you can analyze the log, which means you can analyze the log without modifying the utl_file_dir parameter, the problem of restarting the database caused by modifying the utl_file_dir parameter is avoided. In addition, it also began to support building dictionary information into online logs to analyze and archive logs in different regions. Logmnr is useful when flashback cannot help. As long as archi
Used to obtain the usage of the SD card and system/data Partition, including the total space size, available space, and used space. [Java]Package com. schogini. dhcp;Import java. io. File;Import android. content. Context;Import android. OS. Environment;Import android. OS. StatFs;Public class CheckStore {Private static String notice;Public static String checkSD (C
Android-read and write data to the SD card // Write data to the SD card private void writeSDcard (String str) {try {// determine whether the SD car
", Toast.length_short). Show (); } } Public voidonclick10 (view view) {if(Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {//1. Get the content you want to store//String content = Et_5.gettext (). toString (); //2. Get the external storage directory with package name--only to the root directoryString Sdpath =environment.getexternalstoragedirectory (). GetAbsolutePath (); //Toast.maketext (activitydata.this, "sdpath=" +sdpath, Toast.length_long). Show (); //the
Example of a flash-back query experiment: Database Version: Oracle 9.2.0.4 Operating System: Solaris 8 Automatic rollback segment management must be set for flash query. ora sets the parameter undo_management = auto and the parameter undo_retention = N, which determines the maximum time for Flashback. A larger value requires more undo space. # Sqlplus wacos/OSS SQL * Plus: Release 9.2.0.4.0-production on Fri Jul 22 11:27:19 2005 Copyright (c) 1982,200 2, Oracle Corporation. All rights reserved.
This example mainly implements Android to get the data in the Assets folder and write it to the SD card, which is mainly to read the database in the Assets folder and write it to the SD memory card. The complete sample code is as follows: Import Java.io.File; Import Ja
Public voidSave (View v) throws IOException {//1. Determine the status of the SD card, if the status is mounted to continue, otherwise prompt if(Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {//2. Read the input file name/contentString FileName =Et_of_name.gettext (). toString (); String content=Et_of_content.gettext (). toString (); //3. Obtaining the OutputStream of th
false;}/*** Delete Log File */public static void deleteLogFile () {File file = new File (filePath); if (file. exists () {file. delete ();}}}2. writing data to a file asynchronously does not affect user experience, and there cannot be any latency due to log writing. (In this experiment, if the data written to a file is small at a time, it will not be too slow even if the
In the previous section, we learned how to use file for Android data storage. However, such data is stored in applications. Therefore, the size of such stored files must be limited, sometimes we need to store larger files, such as movies, which uses our sdsard memory card. Android also provides sdcard related operations. Environment class can implement this funct
This article describes the Android programming approach to writing data to SD cards. Share to everyone for your reference, specific as follows: 1. Code: /** * Write file to SDcard * @param filename * @param content file /public void Savetosdcard (String Filename,string content) throws exception{ file File=new file ("/mnt/sdcard", filename); OutputStream out=new fileoutputstream (file);
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