如何在sqlite中插入值

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); 
NSString *documentsDir = [paths objectAtIndex:0]; 

NSFileManager *fileManager = [NSFileManager defaultManager]; 
NSError *error; 
NSString *dbPath =[documentsDir stringByAppendingPathComponent:@"register.sqlite"]; 
BOOL success = [fileManager fileExistsAtPath:dbPath]; 
sqlite3_stmt *selectstmt; 
if(!success) 
     { 
      NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"register.sqlite"]; 
      success = [fileManager copyItemAtPath:defaultDBPath toPath:dbPath error:&error]; 

      if (!success) 
       NSAssert1(0, @"Failed to create writable database file with message '%@'.", [error localizedDescription]); 
     } 

if (sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK) { 

    sql = "select lastname,email,firstname from reg_FORM"; 

    if(sqlite3_prepare_v2(database, sql, -1, &selectstmt, NULL) == SQLITE_OK) { 

     while(sqlite3_step(selectstmt) == SQLITE_ROW) { 

      lastname = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 0)]; 
        email=[NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 1)]; 
        firstname=[NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 2)]; 
        NSLog(@"----%@",lastname); 
        NSLog(@"----%@",email); 
        NSLog(@"----%@",firstname); 

       } 
     sqlite3_finalize(selectstmt); 
      }  
     sqlite3_close(database); 
     }

我正在使用此代碼檢索db中的值，但我確實知道如何在db中插入數據。我想這下面的代碼，但它不工作如何在sqlite中插入值

const char *sql = "insert into reg_FORM (firstname,lastname,email,company,phone) VALUES (aaa,aaa,aaa,aaaa,1223)"; 
      sqlite3_exec(database, [[NSString stringWithFormat:@"insert into reg_FORM (firstname,lastname,email,company,phone) VALUES (aaa,aaa,aaa,aaaa,1223)"] UTF8String], NULL, NULL, NULL);

//給出插入值碼在DB

來源

2012-09-05 NANNAV

不知道這是否在這裏也適用，但在其他框架，你需要用於select的exec，以及用於插入，更新，刪除等的更新。 – jussi

{ 
    BOOL returnValue = YES; 
    sqlite3_stmt *insertStmt = nil; 
    sqlite3 *UserDB ; 
    if (sqlite3_config(SQLITE_CONFIG_SERIALIZED) == SQLITE_OK) 
    { 
     NSLog(@"Can now use sqlite on multiple threads, using the same connection"); 
    } 

    int ret = sqlite3_enable_shared_cache(1); 
    if(ret != SQLITE_OK) 
    { 

    } 
    // Open the database. The database was prepared outside the application. 
    if (sqlite3_open([app.dataBasePath UTF8String], &UserDB) == SQLITE_OK) 
    { 
      if(insertStmt == nil) 
      { 
       NSString *strValue = [NSString stringWithFormat:@"insert into languagemaster Values(?,?)"]; 
       const char *sql = [strValue UTF8String]; 
       if(sqlite3_prepare_v2(UserDB, sql, -1, &insertStmt, NULL) != SQLITE_OK) 
       { 
        NSLog(@"Error while creating insertStmt in tblUserAccount %@", [NSString stringWithUTF8String:(char *)sqlite3_errmsg(UserDB)]); 
        returnValue = NO; 
       } 
      } 

      if(sqlite3_bind_int(insertStmt, 1, langid)) // langid is int 
      { 
       return NO; 
      } 
      if(sqlite3_bind_text(insertStmt, 2, [strLanguageName UTF8String], -1, SQLITE_TRANSIENT) != SQLITE_OK) // strLanguageName is string 
      { 
       return NO; 
      } 

      if(SQLITE_DONE != sqlite3_step(insertStmt)) 
      {   
       NSLog(@"Error while Executing insertStmt in tblLocation %@", [NSString stringWithUTF8String:(char *)sqlite3_errmsg(UserDB)]);   
       returnValue = NO; 
      } 

      sqlite3_reset(insertStmt); 

      if (insertStmt) 
      { 
       sqlite3_finalize(insertStmt); 
       insertStmt = nil; 
      } 
    } 
    sqlite3_close(UserDB); 

    return returnValue;       
}

來源

2012-09-05 11:26:48

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); 
NSString *documentsDir = [paths objectAtIndex:0]; 

NSFileManager *fileManager = [NSFileManager defaultManager]; 
NSError *error; 
NSString *dbPath =[documentsDir stringByAppendingPathComponent:@"register.sqlite"]; 
BOOL success = [fileManager fileExistsAtPath:dbPath]; 
sqlite3_stmt *selectstmt; 
if(!success) 
{ 
    NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"register.sqlite"]; 
    success = [fileManager copyItemAtPath:defaultDBPath toPath:dbPath error:&error]; 

    if (!success) 
     NSAssert1(0, @"Failed to create writable database file with message '%@'.", [error localizedDescription]); 
} 

if (sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK) { 

    const char *sql = "insert into reg_FORM (firstname,lastname,email,company,phone) VALUES ('sdcbb','bbbb','bbbb','bbbb',1111122)"; 
    sqlite3_prepare_v2(database,sql, -1, &selectstmt, NULL); 
    if(sqlite3_step(selectstmt)==SQLITE_DONE) 
    { 
     NSLog(@"insert successfully"); 
    } 
    else 
    { 
     NSLog(@"insert not successfully"); 

    } 


    sqlite3_finalize(selectstmt); 
    sqlite3_close(database); 
}

來源

2012-10-08 10:46:24 NANNAV

如何在sqlite中插入值

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