在SQL Server中使用存储过程修改列。
I wish to modify strings in several columns (for example all columns containing the 'sound' string), for example replacing ',' by '.'. Further to this...
应该使用哪种数据类型来存储散列?
I understand that hashes will be different based on different datatypes in SQL Server. One support Unicode another not .... so on (also collation) 我知道...
sql查询以更新存储在列中的xml节点。
I am working on a project where I am using a table which have xml data stored in one of its column.I am trying to update my entire xml node based on x...
如何将带有值列表的列转换为熊猫数据存储器中的行
Hi I have a dataframe like this: 你好,我有一个这样的数据aframe: A B 0: some value [[L1, L2]] I want to change it into: 我想把它变成: A ...
在MYSQL存储过程中动态选择列的用例
SQL Fiddle with the table schema SQL篡改表模式 I was following this thread to create a stored procedure for dynamic selection of columns. I was wondering i...
PHP如何添加存储在行而不是列中的值?
I need to add write a php script to run from a cron job that will add two Magento Attribute values and store the result as a third attribute in the My...
SQL Server 2012:性能列存储索引与B树
One of the benefits of a columnstore-index is that the data of a single column is stored "next to each other on disk". This stands for better compress...
提高MySQL中InnoDB表BLOB列的存储效率的教程
这篇文章主要介绍了提高MySQL中InnoDB表BLOB列的存储效率的教程,InnoDB的优化在MySQL的优化研究中也是一个非常热门的课题,需要的朋友可以参考下
xml列如何存储在SQL Server 2008中?
I try to understand how SQL Server 2008 store xml columns in an attempt to estimate table size in our product. 我尝试了解SQL Server 2008如何存储xml列以尝试估计产品中的表大...
在数据库列中存储结构化数据?
I have been having a debate with a coworker about whether it would be a good idea to store structured data (such as XML or JSON) in a database column ...
检索存储过程结果集的列定义
I'm working with stored procedures in SQL Server 2008 and I've come to learn that I have to INSERT INTO a temp table that has been predefined in order...
如何从数据库中获取整个列并使用php将其存储在数组中?
My table's name is userdetails, it has four attributes named name, username, mobile and password. I want to get all the mobile numbers and store it in...
更新存储过程中的不同列
I'm trying to port over a concept that I use in Java code that I've used to SQL stored procedures and I'm not sure if it's possible. 我正在尝试移植我在Java代码中...
如何在Sqlite3中的一列中存储数组?
Is there any way to store an array of integers in one column of table? I want o/p like this: 有没有办法在一列表中存储整数数组?我想这样的o / p: ident | value ...
如何在一列中存储数组或多个值
Running Postgres 7.4 (Yeah we are in the midst of upgrading) 运行Postgres 7.4(是的,我们正在升级) I need to store from 1 to 100 selected items into one field in ...
HUABASE :基于列存储的关系型数据库系统
摘要 HUABASE 是基于列存储的关系型数据库系统。列存储技术的特点是数据查询效率高,读磁盘少,存储空间少,是构建数据仓库的理想架构。 HUABASE 实现了多种数据压缩机制、查询优化和稀疏索引技术,在支持高效率的商业智能方面具有良好的发展前景,可以帮助企业轻松做出明智的业务经营决策。HUAB...
从存储过程的结果集中选择列
I have a stored procedure that returns 80 columns, and 300 rows. I want to write a select that gets 2 of those columns. Something like 我有一个返回80列和300行...
将ScopeIdentity用于存储过程中的标识列,asp.net
I've created a stored procedure and I'm inserting values into 3 tables, Users, Workers and Vets. In the Users table, I have an identity column UserID,...
将AUTO_INCREMENT列存储在其他表中
I have a table CLIENT with client_id as auto increment. Now i need to populate other tables SERVICE, COSTUMERS and STOCK at same time. Problem is that...
如何在Sqlite3中的一列中存储数组?
Is there any way to store an array of integers in one column of table? I want o/p like this: 有没有办法在一列表中存储整数数组?我想这样的o / p: ident | value ...