這裏是我的查詢它不工作:Mysql的正則表達式返回結果爲零
select composition from `drugs` where composition regexp "^Diclofenac([^)])"
和輸出:
Diclofenac(50mg),Thiocolchicoside(8mg)
Diclofenac(50mg),Thiocolchicoside(4mg)
Diclofenac(75mg),Thiocolchicoside(4mg)
Diclofenac(50mg),Thiocolchicoside(4mg)
Diclofenac(50mg),Tamsulosin(0.4mg)
Diclofenac(50mg),Eperisone(50mg)
Diclofenac(50mg),Thiocolchicoside(8mg)
Diclofenac(100mg),Rabeprazole(20mg)
Diclofenac(75mg)
Diclofenac(50mg),Thiocolchicoside(8mg)
Diclofenac(50mg),Serratiopeptidase(10mg)
Diclofenac(100mg),Eperisone(150mg)
Diclofenac(4mg),Thiocolchicoside(50mg)
Diclofenac(100mg),Eperisone(150mg)
Diclofenac(50mg),Thiocolchicoside(4mg)
Diclofenac(50mg),Thiocolchicoside(8mg)
Diclofenac(50mg),Nimesulide(100mg)
Diclofenac(50mg),Paracetamol(325mg),Thiocolchicoside(8mg)
Diclofenac(NA),Serratiopeptidase(NA)
Diclofenac(50mg),Nimesulide(100mg)
Diclofenac(50mg),Thiocolchicoside(4mg)
Diclofenac(50mg),Paracetamol(325mg),Thiocolchicoside(4mg)
Diclofenac(100mg),Rabeprazole(20mg)
Diclofenac(50mg),Serratiopeptidase(10mg)
Diclofenac(50mg),Nimesulide(100mg)
我要搜查毒品,其中組合物開始與雙氯芬酸(),其次是「 ,「緊接着是硫柳秋菊苷()。嘗試跟隨,但沒有結果。
select composition from `drugs` where composition regexp "^Diclofenac([^)]),Thiocolchicoside([^)])"
編輯: 創建DB小提琴:https://www.db-fiddle.com/f/fkQkn2WKdax2KbZqt7rPQ/0
這些括號可能需要用反斜槓逃脫:從「藥物」中選擇組合物,其中組成正規表達「雙氯芬酸鈉([[])]」),硫秋水仙苷[([^)] \\)「 –
沒有工作:-( – kargirwar
[ )]僅僅表示匹配任何字符,而不是')'。既然你想匹配多個字符,你應該說'[^)] +'。 「+」表示匹配1個或多個字符。 – Salil