记一次Dynamics CRM Audit 查询失败的问题. 客户环境现象:由于业务逻辑需要使用RetrieveAuditDetailRequest API查询相关Record的详细更改信息.但查询过程中偶尔会出现失败的情况,出错原因提示是 System.TimeoutException: 'The request channel timed out while waiting for a reply after 00:01:59.9929956. Increase the timeout va
题目描述 在audit表上创建外键约束,其emp_no对应employees_test表的主键id.CREATE TABLE employees_test(ID INT PRIMARY KEY NOT NULL,NAME TEXT NOT NULL,AGE INT NOT NULL,ADDRESS CHAR(50),SALARY REAL); CREATE TABLE audit(EMP_no INT NOT NULL,create_date datetime NOT NULL); SQL: D
1.最晚入职员工查询 select * from employees where hire_date = (select max(hire_date) from employees) 2.倒数第三名入职信息 select * from employees order by hire_date desc limit 2,1; 3.查找各个部门当前(to_date='9999-01-01')领导当前薪水详情以及其对应部门编号dept_no select salaries.emp_no,sal
---------PS:但凡有聚合函数(where),必然后Group by,Group by后面跟having ---------面试题 SELECT name,sum(fen) as s from score GROUP BY NAME ORDER BY s; PS:一般聚合查询后面跟having SELECT title, COUNT(DISTINCT emp_no) AS t FROM titles --内部再次过滤GROUP BY title HAVING t >= 2 分页查询 查