一意のインデックスフィールドが行う方法を決定し、それだけでSQLSERVER

（IF 
sys.index_columns FROM SELECT COUNT（*）
INNER sys.indexes ON indexes.index_id = index_columns.index_id AND indexes.object_id = index_columns.object_id JOIN 
内部結合sys.columns ON columns.column_id = index_columns.column_id AND columns.object_id =をindexes.object_id 
WHERE indexes.object_id = OBJECT_ID（N'dbo.tblEnh_SuppQuo」、N'U '）AND indexes.is_unique = 1 AND columns.name = N'InternalQuoNo' 
）= 1 
BEGIN 
	1つの[ 
ENDを

 

若しくは

（IF 
sys.index_columns FROM SELECT COUNT（*）
INNER sys.indexes ON indexes.index_id = index_columns.index_id AND indexes.object_id = index_columns.object_id JOIN 
内部結合sys.columns ON columns.column_id = index_columns.column_id AND columns.object_id =をindexes.object_id 
INNERはobjects.object_id = indexes.object_id ON sys.objectsをJOIN 
objects.nameがN'tblEnh_SuppQuoをWHERE = 'AND objects.schema_id = 1 AND objects.type = N'U'とindexes.is_unique = 1 AND columns.name = N'InternalQuoNo」
）= 1は、
BEGIN 
	1つの[ 
ENDを