sqlite

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 I have done simple performance test on my local machine, this is python script: import redis import sqlite3 import time data = {} N = 100000 for i in xrange(N): key = "key-"+str(i) value = "value-"+str(i) data[key] = value r = redis.Redis("localhost", db=1) s = sqlite3.connect("testDB") cs = s.cursor() try: cs.execute("CREATE TABLE testTable(key VARCHAR(256), value TEXT)") except Exception as excp: print str(excp) cs.execute("DROP TABLE testTable") cs.execute("CREATE TABLE testTable(key

问题 I have used Setup Project before with no issue the project did not have SQLite DB as a dependency I am now trying to make a EXE or msi file for a project that has SQLite included as System.Data.SQLite.Core and the project is a WinForms with a WPF TextBox with this code below Public Sub LoadTB() Dim tb As Windows.Controls.TextBox = New Windows.Controls.TextBox() ElementHost1.Child = tb tb.SpellCheck.IsEnabled = True AddHandler tb.TextChanged, AddressOf tb_TextChanged tb.TextWrapping = Windows

问题 I have used Setup Project before with no issue the project did not have SQLite DB as a dependency I am now trying to make a EXE or msi file for a project that has SQLite included as System.Data.SQLite.Core and the project is a WinForms with a WPF TextBox with this code below Public Sub LoadTB() Dim tb As Windows.Controls.TextBox = New Windows.Controls.TextBox() ElementHost1.Child = tb tb.SpellCheck.IsEnabled = True AddHandler tb.TextChanged, AddressOf tb_TextChanged tb.TextWrapping = Windows

问题 I have used Setup Project before with no issue the project did not have SQLite DB as a dependency I am now trying to make a EXE or msi file for a project that has SQLite included as System.Data.SQLite.Core and the project is a WinForms with a WPF TextBox with this code below Public Sub LoadTB() Dim tb As Windows.Controls.TextBox = New Windows.Controls.TextBox() ElementHost1.Child = tb tb.SpellCheck.IsEnabled = True AddHandler tb.TextChanged, AddressOf tb_TextChanged tb.TextWrapping = Windows

问题 I am trying to run a query / select statement and save it in a variable. I know how to get something specific from a specific column but not from counting rows. This is working as I getting MYID specifically. ResultSet MYIDrs = stmtCFG.executeQuery( "SELECT rowid, MYID from MYINDEX order by rowid desc limit 1;" ); MYID = MYIDrs.getString("MYID"); Now I am trying to count the rows that works in SQLite client but not in the jdbc as I can't figure out what to request. this is what I have but is

问题 I save my text data in a sqlite database, I am able to store them, read them and etc. To load it in The app I do something like this in page.xaml.cs: new Label() {Text = myDbStringData}; However doing like that I can only save plain text, so here's my question, how can i store and read mixed text Bold and plain text in DB and then be able to show it in a Label? I want to save something like this: Neque porro quisquam est qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit...

问题 I have the following query that works fine in MS Access, MySQL and SQL Server but when I try to use it in SQLite I get an error: near "(": syntax error: I can't find the Left command in any documentation of SQLite so I guess it isn't there but how could I get it to work then. SELECT Left(fldcall, 3) AS Group1, Mid(fldcall, 4, 1) AS Group2, tblcalls.*, tblzip.fldcity FROM tblcalls LEFT JOIN tblzip ON tblcalls.fldzipcode = tblzip.fldzipcode; 回答1: You can use the substr() function instead:

问题 I have a Sqlite database file that i modify it by dropping a huge database table that contains thousands of records but the file size remains as it before dropping the table. it seems that it disconnect pointers to data . any ideas how to drop table and make a deep deletion of it in the underlying sqlite file .?? 回答1: To reclaim space, use the vacuum statement. From a sqlite prompt sqlite> VACUUM; From a shell prompt. $ sqlite3 filename 'VACUUM;' 来源： https://stackoverflow.com/questions

问题 I have a Sqlite database file that i modify it by dropping a huge database table that contains thousands of records but the file size remains as it before dropping the table. it seems that it disconnect pointers to data . any ideas how to drop table and make a deep deletion of it in the underlying sqlite file .?? 回答1: To reclaim space, use the vacuum statement. From a sqlite prompt sqlite> VACUUM; From a shell prompt. $ sqlite3 filename 'VACUUM;' 来源： https://stackoverflow.com/questions