sqlite3

Appropriate C# command for ADO.NET SQlite when implementing COUNT() query

Hi All, Consider this command, as written here: Command.CommandText = "SELECT COUNT(ASSET) AS POSEXISTS FROM POSITIONS WHERE ASSET = @ASSET"; Command.Parameters.Add("@ASSET",DbType.String).Value = Symbol; So here, how should I execute this query so that, I can receive the POSEXISTS variable in the C# environment. Soham ...

Converting to Byte Array after reading a BLOB from SQL in C#

Hi All, I need to read a BLOB and store it in a byte[], before going forward with Deserializing; Consider: //Reading the Database with DataAdapterInstance.Fill(DataSet); DataTable dt = DataSet.Tables[0]; foreach (DataRow row in dt.Rows) { byte[] BinDate = Byte.Parse(row["Date"].ToString()); // convert successfully to...

How do I use sqlite3 PRAGMA user_version in Objective-c?

I am trying to check the user_version of the sqlite DB. I have an admin tool to bump the version, but I don't understand the syntax of the pragma statement. I am expecting to test the value in an if-statement. Can someone provide a code sample? When I embed the pragma statement in my objective-c code, the compiler throws an error. ...

What is the difference among NSString alloc:initWithCString versus stringWithUTF8String?

I thought these two methods were (memory allocation-wise) equivalent, however, I was seeing "out of scope" and "NSCFString" in the debugger if I used what I thought was the convenient method (commented out below) and when I switched to the more explicit method my code stopped crashing! Notice that I am getting the string that is being s...

Where is the sqlite3 database stored on the iphone emulator?

Now that I have a read-only application working, I am working on the insert statement. The insert returned OK in my code, but the read-back (in the code) came up empty, so I want to use the command line or browser to read. Can I copy the DB off the emulator and into my laptop for access with other utilities? ...

sqlite3 on iPhone emulator versus device permissions?

Ok, now I finished developing on the emulator and when I installed on my test device, I got the error attempt to write a readonly database What are the settings to control the DB access? Is this going to be difficult to manage when deployed? More information ... I think I know what is going on ... When I look for my DB it is not...

ImportError: No module named _sqlite3

I'm writing for the Google App Engine and my local tests are getting the following error: --> --> --> Traceback (most recent call last): File "C:\Program Files\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3185, in _HandleRequest self._Dispatch(dispatcher, self.rfile, outfile, env_dict) File "C:\Progra...

Sqlite iPhone data insertion problem

Hi I have a function which basically tries to insert some data returned from a REST call. - (void)syncLocalDatabase{ NSString *file = [[NSBundle mainBundle] pathForResource:@"pickuplines" ofType:@"db"]; NSMutableString *query = [[NSMutableString alloc] initWithFormat:@""]; sqlite3 *database = NULL; char *errorMsg = NULL; if (sqlite...

what's wrong with sqlite 3 ? I have just added libsqlite3 file and my database created by manager then...

What's wrong with sqlite 3 ? I have just added libsqlite3 file to my framework and my databasae to my resources folder created by manager... then my application is not opening. report, relaunch options screen appears although i did not do anything with the sqlite3 .. Is it time to try my app in real iphone ?? ...

what's wrong with sql statements sqlite3_column_text ??

if(sqlite3_open([databasePath UTF8String], & database) == SQLITE_OK) { NSLog(@"DB OPENED"); // Setup the SQL Statement and compile it for faster access const char *sqlStatement ="select name from Medicine"; sqlite3_stmt *compiledStatement; int result = sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatemen...

Problem with sqlite query when using the wrapper

- (IBAction)EnterButtonPressed:(id)sender { Sqlite *sqlite = [[Sqlite alloc] init]; NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"test.sqlit...

Running SQLite 3 in MicroApache

I'm running MicroApache (http://microapache.amadis.sytes.net) on Windows XP and would like to use SQLite 3 databases. The PHP version is 5.2.9-2. My MicroApache version has SQLite 2 support through 2 lines in the php.ini: extension=php_pdo.dll extension=php_sqlite.dll I test whether the extension works in 3 ways: 1. phpinfo() 2. exten...

Does SQLite support transactions across multiple databases?

I've done some searching and also read the FAQ on the SQLite site, no luck finding an answer to my question. It could very well be that my database approach is flawed, but at the moment, I would like to store my data in multiple SQLite3 databases, so that means separate files. I am very worried about data corruption due to my applicati...

Rails undo at database level

I'd line to create some kind of undo in my rails app, that's based on an sqlite3 database. For now, a database wide undo would suffice, I mean an undo that can return back in time through states of the whole database, not single tables (for avoiding problems with references etc..) I found vestal_versions, but it's table level and a bit ...

How to add columns to sqlite3 python?

I know this is simple but I can't get it working! I have no probs with insert,update or select commands, Lets say I have a dictionary and I want to populate a table with the column names in the dictionary what is wrong with my one line where I add a column? ##create con = sqlite3.connect('linksauthor.db') c = con.cursor() c.execute('''...

How to insert and call by row and column into sqlite3 python

Lets say i have a simple array of x rows and y columns with corresponding values, What is the best method to do 3 things? How to insert, update a value at a specific row column? How to select a value for each row and column, import sqlite3 con = sqlite3.connect('simple.db') c = con.cursor() c.execute('''create table simple (links text...

Update Query using the Objective C Wrapper for sqlite

Hey I am using the http://th30z.netsons.org/2008/11/objective-c-sqlite-wrapper/ wrapper . My code is this : - (IBAction)UpdateButtonPressed:(id)sender { Sqlite *sqlite = [[Sqlite alloc] init]; NSString *writableDBPath = [[NSBundle mainBundle]pathForResource:@"Money"ofType:@"sqlite"]; if (![sqlite o...

New to Android: openOrCreateDatabase(): where does the sqlite file go?

When I call myDB = this.openOrCreateDatabase("DatabaseName", MODE_PRIVATE, null); Where does the database file get created? I can't find it anywhere. o_O ...

Making a sqlite file stay existent between runs of the program

Hi! I'm having a problem with some sqlite code for an iPhone program in Xcode. I was opening my database like this: int result = sqlite3_open("stealtown.db", &database); Which is how they had it in a book I was looking at while I type the program. But then, that way of opening a database it only works when you run in simulator, not on ...

How to insert several thousand columns into sqlite3?

Similar to my last question, but I ran into problem lets say I have a simple dictionary like below but its Big, when I try inserting a big dictionary using the methods below I get operational error for the c.execute(schema) for too many columns so what should be my alternate method to populate an sql databases columns? Using the alter ...