摘要：
SELECT * FROM table as t WHERE "张三的偶像" LIKE t.userName; bool thisMchBelong = _mch_blackService.Exists(x => x.merchant_name == model.MerchantFullName | 阅读全文
摘要：
sql server 怎么在原有表上加自增长主键列，并指定主键名： ALTER TABLE [Merchant_black] ADD Id bigint identity(1,1) constraint PK_Merchant_black PRIMARY KEY (Id) 阅读全文