Snippet: Fetching results after calling stored procedures using MySQL Connector/Python
https://geert.vanderkelen.org/2014/results-after-procedure-call/
Problem
Using MySQL Connector/Python, you are calling a stored procedure which is also selecting data and you would like to fetch the rows of the result.
Solution
For this example we create a stored procedure which is executing SHOW SLAVE STATUS
.
```python cnx = mysql.connector.connect(user=’scott’, password=’tiger’, database=’mining’) cur = cnx.cursor() cur.execute(“DROP PROCEDURE IF EXISTS slave_status”) proc = “CREATE PROCEDURE slave_status () BEGIN SHOW SLAVE STATUS; END” cur.execute() cur.call(“slave_status”)
for result_cursor in cur.stored_results(): for row in result_cursor: print(row[0]) ```
The result from the above would be:
shell $ python foo.py Waiting for master to send event
Discussion
The stored_results
() method of cursor object is retiring an iterator object which will go over the results proceeded after calling the stored procedure. Each result is actually a MySQLCursorBuffered object.
You could also use the with_rows
cursor property to check if the cursor actually could return rows or not (for example, for SELECT statements). An example is provided in the documentation.
Snippet: Fetching results after calling stored procedures using MySQL Connector/Python的更多相关文章
- An Introduction to Stored Procedures in MySQL 5
https://code.tutsplus.com/articles/an-introduction-to-stored-procedures-in-mysql-5--net-17843 MySQL ...
- Home / Python MySQL Tutorial / Calling MySQL Stored Procedures in Python Calling MySQL Stored Procedures in Python
f you are not familiar with MySQL stored procedures or want to review it as a refresher, you can fol ...
- Spring, Hibernate and Oracle Stored Procedures
一篇英文博文,写的是利用hibernate处理存储过程中的游标等等: Motivation: While there are a few resources available online for ...
- Cursors in MySQL Stored Procedures
https://www.sitepoint.com/cursors-mysql-stored-procedures/ After my previous article on Stored Proce ...
- Good Practices to Write Stored Procedures in SQL Server
Reference to: http://www.c-sharpcorner.com/UploadFile/skumaar_mca/good-practices-to-write-the-stored ...
- MySQL Error Handling in Stored Procedures 2
Summary: this tutorial shows you how to use MySQL handler to handle exceptions or errors encountered ...
- [转]How to: Execute Oracle Stored Procedures Returning RefCursors
本文转自:http://www.telerik.com/help/openaccess-orm/openaccess-tasks-oracle-execute-sp-result-set.html I ...
- Drop all the tables, stored procedures, triggers, constraints and all the dependencies in one SQL statement
Is there any way in which I can clean a database in SQl Server 2005 by dropping all the tables and d ...
- [MySQL] Stored Procedures 【转载】
Stored routines (procedures and functions) can be particularly useful in certain situations: When mu ...
随机推荐
- Oracle+Jsp分页
分页原理: 从jsp页面传到servlet请求中,可以获得当前点击的页数,第一次进入为首页,通过在servlet中获得的当前页数,并且设计一次性显示的内容数,就是几条信息, 并且从dao层查询到数据库 ...
- Oracle VM VirtualBox配置文件
Linux 虚拟机配置文件分为两处. windows下: 1.用户名/.VirtualBox/ 这里面有2个配置文件: VirtualBox.xml 和 VirtualBox.xml-prev. 后面 ...
- Atitit ACID解决方案2PC(两阶段提交) 跨越多个数据库实例的ACID保证
Atitit ACID解决方案2PC(两阶段提交) 跨越多个数据库实例的ACID保证 1.1. ACID解决方案1 1.2. 数据库厂商在很久以前就认识到数据库分区的必要性,并引入了一种称为2PC( ...
- C#学习系列-String与string的区别
参考:http://www.microsoftvirtualacademy.com/Content/ViewContent.aspx?et=9851&m=9832&ct=31042 如 ...
- video自动全屏播放
video自动全屏播放 关于Screen.lockOrientation() https://developer.mozilla.org/en-US/docs/Web/API/Screen/lockO ...
- CSS3伸缩布局Flex学习笔记
如果需要使用伸缩布局首先得把display:flex;对于兼容还得加前缀display:-webkit-display:flex;等其他浏览器前缀,但我本机Chrome测试已经不需要加前缀了,其实这些 ...
- js阻止冒泡及jquery阻止事件冒泡示例介绍
js阻止冒泡 在阻止冒泡的过程中,W3C和IE采用的不同的方法,那么我们必须做以下兼容. 复制代码 代码如下: function stopPro(evt){ var e = evt || window ...
- .NET面试题解析(05)-常量、字段、属性、特性与委托
系列文章目录地址: .NET面试题解析(00)-开篇来谈谈面试 & 系列文章索引 弱小和无知不是生存的障碍,傲慢才是!——<三体> 常见面试题目: 1. const和reado ...
- HTML5标签嵌套规则
× 目录 [1]分类 [2]子元素 [3]总结 前面的话 在html5中,<a>元素的子元素可以是块级元素,这在以前是被认为不符合规则的.本文将详细介绍html5的标签嵌套规则 分类 ht ...
- AngularJS的学习--ng-show/ng-hide/ng-if和ng-switch
在Angular的原生指令中有这几个指令用来控制元素的展示与否,ng-show/ng-hide/ng-if和ng-switch. 在angular性能优化中,我们也常常会用到它. 我们看下他们的区别. ...