7 lines
405 B
SQL
7 lines
405 B
SQL
-- 查询成语是否在 all_idioms 中，如果存在则返回 1，否则再判断是否在 custom_words 或 all_words 中，存在则返回 0，否则返回 -1
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SELECT
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CASE
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WHEN EXISTS (SELECT 1 FROM all_idioms WHERE idiom = ?) THEN 1
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WHEN EXISTS (SELECT 1 FROM custom_words WHERE word = ?) OR EXISTS (SELECT 1 FROM all_words WHERE word = ?) THEN 0
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ELSE -1
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END AS status; |