SQL查詢搜索兩個字符串

Question

我試圖運行一個基本的SQL查詢，其中搜索兩個字符串之一：

1. “晚上加班”
2. “晚上完成工作”

我嘗試了where命令，但輸出為空。 這是有問題的部分：

      where execution_location = ('Nightly job up' or Nightly job 'finished');

請協助，在此先感謝。

Answer 1

使用IN(...)代替：

where execution_location in ('Nightly job up', 'Nightly job finished');

這是在一個子句中比較多個值的方法。

Answer 2

對於MySQL或Transact-SQL，您的where字符串應為：

WHERE (execution_location = 'Nightly job up' OR execution_location = 'Nightly job finished');

Answer 3

嘗試：

WHERE execution_location IN ('Nightly job up, 'Nightly job finished');

或者，如果您要查找每個以Nightly job開頭的字符串：

WHERE execution_location LIKE 'Nightly job%'

Answer 4

嘗試

where execution_location in ('Nightly job up', 'Nightly job finished');

Answer 5

您的表情：

('Nightly job up' or 'Nightly job finished')

...被評估為布爾表達式，結果為0（或FALSE ）（因為字符串的評估結果為FALSE ）。

因此，您最終的WHERE子句等效於：

... WHERE execution_location = 0

其他人已經提供了正確的語法:)