Android SQLite Learning

I. Introduction to SQLite On the Android platform, an embedded relational database named SQLite and sqlite3 is integrated.SupportedNull, integer, real (floating point number), text (string text), blob (binary object) data type,Although it

Save the image in the network as nsdata and save it to the Blob field of SQLite.

Development experience. The first is to obtain images from the network and read the images from the network in the form of nsdata to the localCodeIt's easy. There are only two sentences. Nsstring * url = @ "http://www.163.com/a.jpg"; nsdata *

SQLite object-C encapsulation in iOS development

Fmdatabase -- objective-C encapsulation of SQLiteIt is SQLite's c API that is too messy and fragmented for beginners. Fmdb said that, in fact, it only converts the c api package into a simple and easy-to-use objective-C class. For beginners of

Notes for reading and writing formats of the SQLite datetime type

This article Reprinted from http://www.tntserver.cn/article.asp? Id = 41   I encountered a problem today.First, insert a data in datatime format:String SQL = "insert into [Table] (date_time) values ('" +Date_time.tostring ()+ "'";Execute the

Summary on the use of QT SQLite Databases

First, I developed QT. I mounted a virtual machine through a board and then accessed the shared directory between the PC and the virtual machine through the smb service. It is really good to use databases to do projects in the past few days. Of

Embedded Database sqlce and SQLite usage (SQLite)

  2. Use the SQLite database on WinCE:1. Environment: evc4 + SP41 ).Http://sqlite-wince.sourceforge.net/Download the source code of SQLite for Windows CE.2) create a "wce dynamic-Link Library" project in EVC and name it SQLite.3) in the following

Android SQLite insert optimization sqlitestatement

Recently, due to the needs of the project, it is necessary to improve the data warehouse receiving performance in the project. Through optimization, it is found that the warehouse receiving method is different, and the efficiency is really quite

How to port embedded database SQLite to S3C2410

The following is my working directory, which can be adjusted according to your own situation. 1. Cross-compiling environment establishment: used for cross-compiling SQLite Install cross-2.95.3.tar.bz2 to the/usr/local/ARM directory. Unzip the sqlite-

C ++ SQLite simple use-Query

Bool cfileconfigure: loadsqliteconfig (const cstring & szfield, cfieldex * pfield) {uses_conversion; cstring szpath, szsql; szpath. format (_ T ("% s \ stat \ normal_conf.data"), capplication: configdir (); sqlite3 * PDB = NULL; sqlite3_stmt * pstmt

Android database SQLite sqliteopenhelper

  /* Everyone knows that it will be very tiring to write a blog. Hope = reprint please indicate the source: http://blog.csdn.net/ta893115871 Please do not pity your mouse, (* ^__ ^ *) Xi ...... */ As we all know, databases are very important.

Android in-depth study of SQLite instances (II)

Written in front of, this article Reprinted from http://www.eoeandroid.com/thread-81911-1-1.html Package it. service; import Java. util. arraylist; import Java. util. list; import android. content. context; import android. database. cursor; import

C ++ operate SQLite Databases

Before using C ++ to operate SQLite, You need to obtain sqlite3.h, sqlite3.lib, and sqlite3.dll. HereDownload. And import the three files into the VC ++ project. Put the sqlite3.dll file in the debug folder. SQLite API introduction int sqlite3_open (

How to Write binary image data to SQLite and read it

Implementation Code for writing data to the database: Nsarray * paths = nssearchpathfordirectoriesindomains (nsdocumentdirectory, nsuserdomainmask, yes); nsstring * datapath = [[paths objectatindex: 0] stringbyappendingpathcomponent: @ "SQLite.

SQLite guide FAQ (Chinese)

1. How to create an auto-increment field? 2. What data types does SQLite support? 3. Why can I insert a string into the integer field of the SQLite database? 4. Why does SQLite think the expression '0' = '00' is true? 5. Why does SQLite not allow '0'

C # automatically register the SQLite ado.net database driver and custom connection string

Vista or later systems must have System Administrator privileges to execute the following code. Sqlite.net uses 1.0.66.0, supports the ado.net EF data model,: http://sourceforge.net/projects/sqlite-dotnet2/files/SQLite%20for%20ADO.NET%202.0/ During

Use SQLite and Enterprise Library in applications

System. Data. SQLite:Http://sqlite.phxsoftware.com/ Enterprise Library 3.1 (May 2007 ):Http://www.microsoft.com/downloads/details.aspx? Familyid = 4c557c63-708f-4280-8f0c-637481c31718 & displaylang = en Entlibcontrib project at

How to efficiently use SQLite. Net (C #)

As a lightweight embedded database, SQLite is still very useful. Rain marks are highly recommended ~~~~~~ Today, a friend tested SQLite and concluded that the efficiency of SQLite was too low. It took 2 minutes to insert 1000 records in

C # create a new SQLite database (two methods)

In this article, you can search and view the Help File of sqlite.net over the Internet, and find two ways to create a new SQLite database. If you have other better solutions, please let me know.1. Use System. Io to create a new file.Public void

The entire process of compiling and using SQLITE database in VC Environment

1. Download sqlite SQLite can go to the official site to download http://www.sqlite.org/download.html Use sqlite in VCTo download sqlitedll-3_7_2.zipand sqlite-amalgamation-3_7_2.zip Ii. compilation process After the dll package is decompressed,

The efficiency of a large number of SQLite Inserts

In the past two days, another Data Conversion Program will explain how to convert the data originally stored in binary format to the SQLite database. The total number of records is more than 10 million. The development uses the. net framework 3.5 sp1

Total Pages: 100 1 .... 55 56 57 58 59 .... 100 Go to: GO

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.