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我用这我如何检索来自sqlite数据库的文本数据在objective-c中?
-(void) Data
{
databaseName = @"List.sqlite";
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask, YES);
NSString *documentsDir = [documentPaths objectAtIndex:0];
databasePath =[documentsDir stringByAppendingPathComponent:databaseName];
[self checkAndCreateDatabase];
sqlite3 *database;
if (sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK)
{
if(detailStmt == nil)
{
const char *sql = "Select item from list";
if(sqlite3_prepare_v2(database, sql, -1, &detailStmt, NULL) == SQLITE_OK)
{
NSLog(@"Hiiiiiii");
while(sqlite3_step(detailStmt) == SQLITE_ROW)
{
NSLog(@"Helllloooooo");
NSString *item= [NSString stringWithUTF8String:(char *)sqlite3_column_text(detailStmt, 0)];
//item1=item;
NSLog(@"%@",item);
}
sqlite3_reset(detailStmt);
}
sqlite3_finalize(detailStmt);
sqlite3_clear_bindings(detailStmt);
}
}
detailStmt = nil;
sqlite3_close(database);
}
@uttam的:请提供你想要什么更具体的细节。 – Sampson 2010-02-20 06:31:26
为什么不使用核心数据? sqlite API实际上非常难以正确使用。核心数据有更好的入门文档和更好的支持。 – bbum 2010-02-20 07:00:10