Hi, I'm using sqlite database in my iphone app. I've a table which has 3 integer columns. I'm using following code to write to that database table.

-(BOOL)insertTestResult {
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
NSString* dataBasePath = [documentsDirectory stringByAppendingPathComponent:@"test21.sqlite3"];     

BOOL success = NO;
sqlite3* database = 0;
if(sqlite3_open([dataBasePath UTF8String], &database) == SQLITE_OK) 
{
    BOOL res = (insertResultStatement == nil) ? createStatement(insertResult, &insertResultStatement, database) : YES;
    if(res)
    {
        int i = 1;
        sqlite3_bind_int(insertResultStatement, 0, i);
        sqlite3_bind_int(insertResultStatement, 1, i);
        sqlite3_bind_int(insertResultStatement, 2, i);

        int err = sqlite3_step(insertResultStatement);
        if(SQLITE_ERROR == err) 
        {
            NSAssert1(0, @"Error while inserting Result. '%s'", sqlite3_errmsg(database));
            success = NO;
        }
        else 
        {
            success = YES;
        }
        sqlite3_finalize(insertResultStatement);
        insertResultStatement = nil;            
    }
}
sqlite3_close(database);    
return success;}

The command sqlite3_step is always giving err as 19. I'm not able to understand where's the issue.

Tables are created using following queries:

CREATE TABLE [Patient] (PID integer NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,PFirstName text NOT NULL,PLastName text,PSex text NOT NULL,PDOB text NOT NULL,PEducation text NOT NULL,PHandedness text,PType text)

CREATE TABLE PatientResult(PID INTEGER,PFreeScore INTEGER NOT NULL,PForcedScore INTEGER NOT NULL,FOREIGN KEY (PID) REFERENCES Patient(PID))

I've only one entry in Patient table with PID = 1

BOOL createStatement(const char* query, sqlite3_stmt** stmt, sqlite3* database){
BOOL res = (sqlite3_prepare_v2(database, query, -1, stmt, NULL) == SQLITE_OK);
if(!res) 
    NSLog( @"Error while creating %s => '%s'", query, sqlite3_errmsg(database));
return res;}