WHERE和SQLite中陳述

我有合併兩個一個問題，在下面的SQL語句語句：WHERE和SQLite中陳述

query = [[NSString alloc] initWithFormat: @"SELECT Name, Description,Postcode,AddressLine1, ImageURL, Free, Area, OpeningTimes, NearestTube, Cost,UniqueID, URL, Number, FirstLetter FROM MainDetails WHERE Free ='Y' AND FirstLetter = '%@%'",tmpLike];

我想說這裏免費等於Y和FirstLetter等於tmplike，但是上述不管用。

任何人都可以幫忙嗎？

來源

2011-09-30 GuybrushThreepwood

試試這個REMOVE％從去年

query = [[NSString alloc] initWithFormat: @"SELECT Name, Description,Postcode,AddressLine1, ImageURL, Free, Area, OpeningTimes, NearestTube, Cost,UniqueID, URL, Number, FirstLetter FROM MainDetails WHERE Free ='Y' AND FirstLetter = '%@'",tmpLike];

來源

2011-09-30 10:14:49 Narayana

仍然是同樣的問題。 – GuybrushThreepwood

不工作意味着你正在收到錯誤 – Narayana

嘗試逃逸字符 '/'

query = [[NSString alloc] initWithFormat: @"SELECT Name, Description,Postcode,AddressLine1, ImageURL, Free, Area, OpeningTimes, NearestTube, Cost,UniqueID, URL, Number, FirstLetter FROM MainDetails WHERE Free ='Y' AND FirstLetter = '%@\%'",tmpLike];

來源

2011-09-30 10:17:11

仍然是同樣的問題。 – GuybrushThreepwood

wat error ur getting exactly –

首先你嘗試使用Sqlite Browser或其他工具，並使用tat查詢 –

你使用通配符讓你想不LIKE平等（=）;

... WHERE Free ='Y' AND FirstLetter LIKE '%@%'"

來源

2011-09-30 10:24:46

以獲得更好的性能：... WHERE Free ='Y'AND FirstLetter LIKE '@％'」。 –

使用這一個它做工精細

query = [[NSString alloc] initWithFormat: @"SELECT Name, Description,Postcode,AddressLine1, ImageURL, Free, Area, OpeningTimes, NearestTube, Cost,UniqueID, URL, Number, FirstLetter FROM MainDetails WHERE Free ='Y' AND FirstLetter LIKE '%@ %%'",tmpLike];

來源

2011-09-30 10:46:27 Ron

也許只是括號？

... WHERE (Free ='Y') AND (FirstLetter LIKE '%@')",tmpLike];

來源

2011-09-30 11:32:51 yosh

WHERE和SQLite中陳述

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