java - SQL 语句给出错误

Question

我在 Android 上使用 SQLite，运行此命令时遇到问题：

UPDATE vocab_words SET correct = 5 
WHERE
    name = 'AQA GCSE Spanish Higher',
    foreign_word = 'campo, el',
    english_meaning = 'field, the'

这里有什么问题？提前致谢。

Answer 1

您的 SQL 查询有语法错误。请从以下位置更改您的查询：

UPDATE vocab_words SET correct = 5 WHERE name = 'AQA GCSE Spanish Higher', foreign_word = 'campo, el', english_meaning = 'field, the'

到：

UPDATE vocab_words SET correct = 5 WHERE name = 'AQA GCSE Spanish Higher'AND foreign_word = 'campo, el'AND english_meaning = 'field, the'

此外，我建议您使用一些教程阅读 SQL 的基础知识。这是基本错误之一。

Answer 2

使用ANDnot with组合两个或多个简单条件comma(,)。

UPDATE vocab_words SET correct = 5 WHERE name = 'AQA GCSE Spanish Higher', foreign_word = 'campo, el', english_meaning = 'field, the'

用。。。来代替

UPDATE vocab_words SET correct = 5 WHERE name = 'AQA GCSE Spanish Higher' AND foreign_word = 'campo, el' AND english_meaning = 'field, the'

Answer 3

从最初查看您的帖子开始，更新声明应该是 -

UPDATE vocab_words SET correct = 5 WHERE name = 'AQA GCSE Spanish Higher' and foreign_word = 'campo, el' and english_meaning = 'field, the'