sqlite database synchronization

1.Sqlite IntroductionSQLite is a lightweight database, it is contained in a relatively small C library, it is designed to be embedded, because it occupies very little resources, it may only need hundreds of K of memory, and support Windows/linux/unix and so on the mainstream operating system, At the same time can be combined with a lot of programming languages, such as: c#/java/php, etc., so in the embedded

* errmsg = NULL; Char ** dbResult; Int nRow, nColumn; Int I, j; Int index; Result = sqlite3_open ("c :\\ sqlite3 \ test. db", db ); If (result! = SQLITE_ OK) { Printf ("failed to open database! \ N "); Return-1; } Result = sqlite3_get_table (db, "select * from student", dbResult, nRow, nColumn, errmsg ); If (SQLITE_ OK = result) { Index = nColumn; Printf ("total % d records \ n", nRow ); For (I = 0; I { For (j = 0; j { Printf ("segment name:

); For (INT I = 1; I {STD: stringstream strsql;Strsql Strsql STD: String STR = strsql. STR ();Res = sqlite3_exec (PDB, str. c_str (), 0, errmsg );If (res! = Sqlite_ OK){STD: cout Return-1;}} Res = sqlite3_exec (PDB, "Commit transaction;", 0, errmsg ); STD: cout Return 0;} Static int callback (void * notused, int argc, char ** argv, char** Azcolname ){Int I;For (I = 0; I std: cout (Argv [I]? Argv [I]: "null") }STD: cout Return 0;} Int select1 (){Char * errmsg;String strsql = "select * From te

;Import Android.database.sqlite.SQLiteOpenHelper;/** * * @author Lin* SQLite Help class */public class Sqlite_persondb extends sqliteopenhelper{/*** SQLite Database construction method, used to define database name, database query result set,

is invalid because it is on the right of column C, and column C uses an inequality, according to the limitations of the use of inequality, column C already belongs to the rightmost.Finally, let's look at another article:... Where B in (1, 2, 3) and C not null and D = 'hello' The index will not be used, because the leading column is not used, this query will be a full table query. In fact, in addition to indexes, there are many factors that affect query performance, such as table connection and

Example of how php reads the sqlite database, and how to operate the sqlite getting started instance in php programming.Reference: http://www.jbxue.com/article/php/22383.htmlBefore using SQLite, make sure that the sqlite and pdo configurations are enabled in php. ini. Open t

A program engineer will occasionally encounter when deploying code, there is no database such as MySQL on the server, or the price of the database has to be calculated in addition to the space, when your project is small or not able to buy the database space, you can consider using SQLite.

Php 5X uses the built-in sqlite3 link database, PDO link sqlite (low-cost development) (1), sqlite3pdo A program engineer occasionally encounters code deployment. There are no databases such as mysql on the server, or the database price must be calculated outside the space, you can consider using sqlite when your proje

SQLite security does not use MySQL high, because SQLite does not create users, as well as permission settings, SQLite is a standalone database, functional simplicity, miniaturization, MySQL test for server data volume of large functions need to install, such as a large number of Web site traffic managementIn fact, MySQ

Analysis and solution of Chinese garbled characters appearing in SQLiteWhen we use the SQLite database, we may find that when inserting data to the database is displayed when the Chinese characters, but read through SQLite is garbled, this is because the SQLite

To build the code for the database: {General code to establish a Memory database:}beginFdconnection1.drivername: = ' SQLite '; With FDConnection1.Params.Add (' driverid=sqlite ');//FDConnection1.Params.Add (' database=:memory: '); Can omit this line, FIREDAC source code sho

SQLite is a very small embedded open source database software. That is to say, there is no independent maintenance process, and all maintenance comes fromProgramItself. It uses a file to store the entire database, which is very convenient to operate. Its biggest advantage is its ease of use, which is indeed somewhat different from other large databases. However,

In most applications, one of the unavoidable things to do is to set up such local data stores. Simple data storage We can do local data storage using LocalSettings or IsolatedStorageFile (Isolated storage) and so on. However, if the data is complex, or if there is an association relationship, this simple key-value storage method is not enough. This is the time to use a database for storage. When it comes to databases, small, lightweight file-based

This article will not be practical. Some resources are quite good. Let's share a link with you. The online cool predecessors can always create benefits for our elders !!! Young !!! Haha! I have found a good website on the Internet, which is better than the textbooks. I would like to share it with everyone. PS: Thank you !! SQL Tutorial: W3School At the same time, I attached a note photo which I started learning SQL statements in the Early Learning Mode (ps: I was not born in a computer science c

IOS provides SQLite as a local database, and monotouch also provides mono. Data. SQLite to encapsulate SQLite. Compared with objective-C using SQLite databases, it is easy to use monotouch to access SQLite data. First, let's look

Reprint Please specify source: Minsan Android There are different ways to store and manage application data (Sharedperferences,file,sqlitedatabase, networked storage) under the Android platform, and the choice of methods depends on the type of data you need to store and how it is structured. SQLite database can solve the problem of storage of structured data in a safe and effective way; This is

Html code Android 2.3.3 Eclipse Version: 3.7.0 LogCat LogCat error message:Java code 02-1309:21:35.030: WARN/dalvikvm (17173): Threadid =19: Thread exiting with uncaught exception (group =Zero x 40015560) 02-1309:21:35.130: ERROR/AndroidRuntime (17173): Fatal exception: Thread-26 02-1309:21:35.130: ERROR/AndroidRuntime (17173): Android. database. sqlite. SQLiteException: bind or column index out of

The Android system comes with a database called SQLite. In this article we use a demo to illustrate an example of an Android operating database.by theThe database files created by Android are stored under the/data/data/See the database file, we generally use a visual tool called SQ