隔離字符是括號內

Question

考慮的文本字段數據如下：

Plastic Bottle (5 ml) 

我怎麼會去隔離即括號內的文字，這樣我可以的另一個上下文中使用它聲明？

注意，括號內的文字會有所不同

Answer 1

像這樣的東西應該工作（但僅提取第一組括號中的文字）......

DECLARE @Input AS VARCHAR(MAX) 
DECLARE @Extracted AS VARCHAR(MAX) 
DECLARE @Open AS INT 
DECLARE @Close AS INT 

SET @Input = 'Plastic Bottle (5 ml)' 
SET @Open = PATINDEX('%(%', @Input) + 1 
SET @Close = PATINDEX('%)%', @Input) - 1 
SET @Extracted = SubString(@Input, @Open, @Close - @Open + 1) 

PRINT @Extracted