SQLite architecture:
SQLite is composed of interfaces, compilers, virtual machines, and backend servers.Program(Back end.
Two other architecture diagrams are relatively simple:
Interface ):
It is composed of SQLite C APIs.
The official download of sqlitesqlite in VC only provides us with a sqlite3.dll and a sqlite3.def file, followed by a bunch of source code, and does not provide lib files for VC ++ 6.0, SLN or vcproj files. You can use the sqlite3.def file to
The previous term was used as a project (Embedded Linux). Because a large amount of data needs to be stored, it takes up to 30 days. It was originally intended to be saved to the file and re-parsed every time the application was started. However,
Traverse the entire table and output the query results:
Int main (INT argc, char ** argv){Int RC, I, ID, CID;Char * Name;Char * SQL;Char * zerr;Sqlite3 * dB; sqlite3_stmt * stmt;SQL = "select ID, name, CID from episodes ";// Open the databaseSqlite3_
Since September August, I have been learning SQLite and preparing to read the source code.But I cannot understand it now,How can I learn SQLite well?Why should I read the source code? Why?How to read? What principles should we follow?What should I
Transaction type:
There are three different types of transactions that start transactions in Different lock states.
Specify the transaction type in the begin command: Begin [deferred | immediate | exclusive] transaction;
Deferred must be used to
Supplement to the design and concept (the previous article reposted from the mrdb predecessors:
Note several important pre-query c api functions: sqlite3_prepare_v2 (); sqlite3_step (); sqlite_finalize ().
Temporary Storage:
An important part of
I recently tested the memory database SQLite and found that the function has been enhanced a lot. For example, the multi-thread support (implemented using the file lock method) can also be fully implemented in memory (using ":
SQLite is a lightweight database and an acid-compliant associated database management system. It is designed to be embedded and has been used in many embedded products, it occupies very low resources. In embedded devices, it may only need several
Recently, I took a small project in the United States. The main requirement is to combine the data exported from the disk (DBF format) with other data (CSV format) to generate a new data table, which facilitates query and error correction. The other
Recently I am looking at the source code of the Android platform. Next I will summarize the relationship between sqlitedatabase and its underlying sqllite database. How does the upper-layer sqlitedatabase call the underlying SQLite database
Original article. For more information, see http://blog.csdn.net/zhy_cheng/article/details/8634967.
Hello everyone, I haven't updated my blog for a long time. I am very pleased to see your comments in my blog. This time I bring you a cocos2d-x
This article provides an overview and Getting Started Guide for using the SQLite C/C ++ interface.
Since the early stage of SQLite only supports five C/C ++ interfaces, it is very easy to learn and use. However, with the enhancement of the SQLite
I am using the datalogic memor scanner (Intel XScale PXA255 @ 200 MHz, 64 MB system memory, and system flash memory)128 M), the operating system is WinCE5.0. The database is sqlite3. Can I read a TXT file containing 0.2 million rows of data and
SQLite database connection method
SQLite. net
Type:. NET Framework class library
Usage: system. Data. SQLite. sqliteconnection
Basic
Data Source = filename; version = 3;
Version 2 is not supported by this class library.
Using UTF16
Data Source =
Lightweight database SQLite Installation and Use (1) SQLite introduction see Baidu Encyclopedia: http://baike.baidu.com/view/19310.htm Official Website: http://www.sqlite.org/(2) linux SQLite compilation and installation of sqlite-amalgamation-307090
Code: mian. cpp
# Include # include # include int main (INT argc, char * argv []) { qcoreapplication A (argc, argv); qsqldatabase DB = qsqldatabase: adddatabase ("qsqlite "); dB. setdatabasename ("/tmp/My. DB "); If (! DB. open () {
Reposted on this blog (thanks to this friend ):
Http://hi.baidu.com/3g13/blog/item/f12dc5131313aa1e5baf5301.html
I have always liked text-based databases, which are simple, convenient, and easy to save. Recently, the MySQL database of a website
Query the same field values in a column of the table.
Example: query the user_id values in the user_id column of sms_user_organ.
Table Name: sms_user_organUser_id organ_id4427 5494428 74428 94429 394
Query statementSelect * From sms_user_organWhere
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