摘要： 测试In & Exists & Join 的性能Step 1. 测试环境搭建Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (X64) Enterprise Edition (64-bit) on Windows NT 6.1 1: -- IN & EXISTS & INNER JOIN 2: CREATE TABLE BIG_TB 3: ( 4: ID INT IDENTITY PRIMARY KEY, 5: Col CHAR(4) NOT NULL 6: ) 7: 8: C... 阅读全文