mdx query

Detailed description of MySQL grouping query and connection query statements, detailed description of mysql Group query groupGroup by attribute name [having condition expression] [with rollup]"Attribute name" refers to grouping based on the field value. "having condition expression" is used to restrict the display After grouping. results that meet the conditions

A "general" query paging class that can query all tables has a recent whim. I hope to write a paging class that can query all tables. In actual development, I am afraid that the most frequently used code is to query and display the result set by page, while the table structure is diverse, I want to improve the code reu

A "general" query paging class that can query all tables has a recent whim. I hope to write a paging class that can query all tables. In actual development, I am afraid that the most frequently used code is to query and display the result set by page, while the table structure is diverse, I want to improve the code reu

This article describes how to analyze MySQL slow query logs by setting parameters to analyze the causes of performance problems, for more information, see query. Currently, most databases provide performance analysis tools. For example, Oracle will help you find slow statements and provide optimization solutions. In MySQL, you need to enable slow log records for analysis (records can be saved in tables or f

In php, a "general" query page class that can be used to query all tables is a "general" query page class that can be used to query all tables? In a recent whim, I hope to write a paging class that can be used to query all tables. In actual development, I am afraid that the

This article focuses on the use of parameter query techniques. 1. Use parameters in multiple fields We can use parameters in more than one field to generate parameter queries. For example, we have an order form, orders, which have CustomerID and EmployeeID fields, and we want to follow these two fields to find the order that an employee has signed with a customer. We enter [Enter Customer ID] in the criteria line of the CustomerID field in Design view

Conditional query1, the first kind, with? Placeholders, such as://login (with the? placeholder) PublicListthrowsexception{Session Session=hibernatesessionfactory.getsession (); String hql= "from Userpo where name =?" and pwd=? "; Query Query=session.createquery (HQL); Query.setstring (0, Up.getname ()); Query.setstring (1, Up.getpwd ()); Listquery.list (); Session.close (); returnlist;}2, with ": +named "

[Hibernate] Hibernate multi-Table query and hibernate Table query In [Hibernate] Hibernate's difference in clustering query, grouping query, sorting, and time (click to open the link), we have already talked about how to replace SQL statements with HQL statements, perform clustering

T-SQL dynamic query (1) -- Introduction Preface: During feature development, we often encounter a scenario similar to the following: the application has a query function that allows users to select the required conditions among many query conditions. This is also the focus of this series. But sometimes you may find that some conditions are more or less mutuall

Multi-table query data, write multiple SQL separate query good, or write a SQL to do a joint query good? Reply content: Multi-table query data, write multiple SQL separate query good, or write a SQL to do a joint query