sqlite

问题 How can I create a database in sqlite from JavaScript? 回答1: May this script help you. <script type="text/javascript"> function createDatabase(){ try{ if(window.openDatabase){ var shortName = 'db_edentiti'; var version = '1.0'; var displayName = 'Edentiti Information'; var maxSize = 65536; // in bytes db = openDatabase(shortName, version, displayName, maxSize); alert('Sqlite Database created'); } }catch(e){ alert(e); } } </script> 回答2: For what you want to use sqlite? in firefox you could get

问题 i wrote a python program like this that should run in multithreading mode: def Func(host,cursor,db): cursor.execute('''SELECT If_index, Username, Version, Community, Ip_traff FROM HOST WHERE Hostname = ?''',(host,)) #do something #--- Main --- db = sqlite3.connect(os.getcwd()+'\HOST', check_same_thread = False) #opendatabase cursor = db.cursor() #generate a cursor for ii in range(len(host)): #host is a list of ipaddress #for each host i want generate a thread thr = threading.Thread(target =

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 years ago . Improve this question The SQLite extension is enabled by default as of PHP 5.0. Beginning with PHP 5.4, the SQLite extension is available only via PECL. Ok, I'm relatively new in PHP programming, and I was wondering what does this quoted information from official PHP site

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 years ago . Improve this question The SQLite extension is enabled by default as of PHP 5.0. Beginning with PHP 5.4, the SQLite extension is available only via PECL. Ok, I'm relatively new in PHP programming, and I was wondering what does this quoted information from official PHP site

问题 I'm using the RSQLite package to make queries to a local SQLite database, and for some queries the RSQLite interface is quite slow. As a specific example, the following query takes under one second to run using the sqlite3 command-line utility: $ sqlite3 data/svn.db SQLite version 3.7.5 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> select count(distinct svn_path.revision) FROM src INNER JOIN svn_path ON src.filename=svn_path.path; 5039 But the equivalent

问题 I'm writing a Qt application where different models can insert/delete/update the same table. When one model changes the database, I would like the other models to be notified of the change, so they can update their views accordingly. It seems that the best way to monitor inserts, deletes and updates in SQLite is to use QSqlDriver::subscribeToNotification and then react to the notification signal. I know the syntax is along the lines of: db.driver()->subscribeToNotification("anEventId");

问题 I'm writing a Qt application where different models can insert/delete/update the same table. When one model changes the database, I would like the other models to be notified of the change, so they can update their views accordingly. It seems that the best way to monitor inserts, deletes and updates in SQLite is to use QSqlDriver::subscribeToNotification and then react to the notification signal. I know the syntax is along the lines of: db.driver()->subscribeToNotification("anEventId");

问题 Simply put, I have a table with, among other things, a column for timestamps. I want to get the row with the most recent (i.e. greatest value) timestamp. Currently I'm doing this: SELECT * FROM table ORDER BY timestamp DESC LIMIT 1 But I'd much rather do something like this: SELECT * FROM table WHERE timestamp=max(timestamp) However, SQLite rejects this query: SQL error: misuse of aggregate function max() The documentation confirms this behavior (bottom of page): Aggregate functions may only

问题 Its possible use node.js + passport and sqlite database with session? All example only with mongoDb. I want collect all data in sqlite. 回答1: Below is an example of using passport-local to create a SQLite backed login strategy. Express specific initialization has been omitted. This example assumes you have a database with the following users table: CREATE TABLE "users" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT, "username" TEXT, "password" TEXT, -- sha256 hash of the plain-text password "salt"

问题 Its possible use node.js + passport and sqlite database with session? All example only with mongoDb. I want collect all data in sqlite. 回答1: Below is an example of using passport-local to create a SQLite backed login strategy. Express specific initialization has been omitted. This example assumes you have a database with the following users table: CREATE TABLE "users" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT, "username" TEXT, "password" TEXT, -- sha256 hash of the plain-text password "salt"