I am trying to build a SQLite DB in Xcode using Objective-c but am having an issue creating the table. I believe my insert function is done correctly, but when I try to run it I get the following error:
2016-09-20 09:39:31.612 Test[58546:5169036] Unable to prepare statement: no such table: Users
My code is here below. Please let me know if know what I may be doing incorrectly. Thanks!
[super viewDidLoad];
//do any addtional setup after view load, typically from nib
NSString *docsDir;
NSArray *dirPaths;
//gets the directory
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = dirPaths[0];
//Build path to keep database
_databasePath = [[NSString alloc] initWithString:[docsDir stringByAppendingPathComponent:@"Users.db"]];
NSFileManager *filemgr = [NSFileManager defaultManager];
if([filemgr fileExistsAtPath:_databasePath] == NO) {
const char *dbPath = [_databasePath UTF8String];
if(sqlite3_open(dbPath, &_DB) == SQLITE_OK) {
char *errorMessage;
const char *sqlStatement = "CREATE TABLLE IF NOT EXIST Users (Username TEXT PRIMARY KEY, PASSWORD TEXT, EMAIL TEXT, null PHONE TEXT, null WINS INTEGER, null LOSSES INTEGER, null BALANCE DECIMAL INTEGER";
if(sqlite3_exec(_DB, sqlStatement, NULL, NULL, &errorMessage) != SQLITE_OK) {
//below creates a popup success message if necessary
UIAlertController * alert= [UIAlertController
alertControllerWithTitle:@"Success"
message:@"Table created"
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* ok = [UIAlertAction
actionWithTitle:@"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action)
{
[alert dismissViewControllerAnimated:YES completion:nil];
}];
[alert addAction:ok];
[self presentViewController:alert animated:YES completion:nil];
}
sqlite3_close(_DB);
}
else {
//below creates a popup error message if necessary
UIAlertController * alert= [UIAlertController
alertControllerWithTitle:@"Error"
message:@"Unable to create table"
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* ok = [UIAlertAction
actionWithTitle:@"OK"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction * action)
{
[alert dismissViewControllerAnimated:YES completion:nil];
}];
[alert addAction:ok];
[self presentViewController:alert animated:YES completion:nil];
}
}
}
Please carefully check your create table SQL, there are some issues I have found with your SQL:
TABLLE
(should be TABLE) EXIST
(should be EXISTS) PHONE TEXT NULL
Why not try and use FMDB , which is one of the most popular library to deal with SQLite in OC. And you don't need to use the low-level C code to handle SQLite.
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