A cross-tabulation is a common classified summary table. Use a cross-tabulation query to display the summary values of a field in the source table and group them,
One group is listed on the left of the data table, and the other is listed on the top of the data table. .
Data can be summarized and computed at the inter
and SQL commands, stored procedures, etc.Therefore, you can use view or SQL commands. In the video example, I used this example.The raw data is like this (figure 3 ),
To apply the crosstab chart, modify it as shown in Figure 1.I made a view to simplify subsequent operations. For subsequent operations, the effects of using tables and views are the same.View Script:
Select
Year, region, indicator,
'
Maximum Value
'
As
Value category, maximum value
As
Value
From
Test_4
SQL cross tabulation method cross tabulation-Cross is generally a type of grouping statistics, the form is more complex, display is more clear, however, the database itself does not provide the real-current cross
Cross tabulation QueryIt is undoubtedly easy to analyze and process data in use. You can use the Wizard to generate (in the wizard you can choose whether to generate a row total) or directly write this SQL statement according to the access-specific JET-SQL syntax.
Aggregate functions of TransformSelectstatementTransform aggfunctionSelectstatementStruct tfield [IN (value1 [, value2 [,...])]
For example, in t
Lecture 2. Define and use a cross tabulation to query a cross tabulation to display the summary values (total, calculation, and average values) of a field in the table and place them in the query table group, A group is listed on the left of the data table, and a group is listed on the top of the data table. This funct
retrieving data from tables, but also support View and SQL commands, stored procedures, etc.Therefore, you can use View or SQL commands. In the video example, I used this example.The raw data is like this (figure 3 ),
To apply the crosstab chart, modify it as shown in Figure 1.I made a View to simplify subsequent operations. For subsequent operations, the effects of using tables and views are the same.View Script:Select Year, region, indicator, 'maxim' as value category, maximum value as value
The ORACLE tutorial is: Dynamic Oracle cross tabulation. Oracle is the most widely used large database, while Oracle Database Design in the paradigm can greatly reduce data redundancy, making database maintenance more convenient. Unfortunately, data tables in the paradigm generally cannot be directly output. Today, we will discuss how to generate dynamic cross-
not only support retrieving data from tables, but also support view and SQL commands, stored procedures, etc.Therefore, you can use view or SQL commands. In the video example, I used this example.The raw data is like this (figure 3 ),
To apply the crosstab chart, modify it as shown in Figure 1.I made a view to simplify subsequent operations. For subsequent operations, the effects of using tables and views are the same.View Script:
Select
Year, region, indicator,
'
Maximum Value
'
and SQL commands, stored procedures, etc.Therefore, you can use view or SQL commands. In the video example, I used this example.The raw data is like this (figure 3 ),
To apply the crosstab chart, modify it as shown in Figure 1.I made a view to simplify subsequent operations. For subsequent operations, the effects of using tables and views are the same.View Script:
Select
Year, region, indicator,
'
Maximum Value
'
As
Value category, maximum value
As
Value
From
Test_4
Cross tabulation -- check the column's Count value and length and add row data (9) cross tabulation -- in addition to the Count value and Name Length of the column to be confirmed, if everything is normal, you still need to enter the # rownames table -- checkcolumncountif (selectcount (*) from # colnames) 1023 begindro
Cross tabulation-verifying the existence of objects (3) cross tabulation-verifying the existence of source objects through the sysobjects table. all three provided columns are checked to see whether the provided source object exists in the syscolumns table. -- checkifsourceexistsifnotexists (select * fromsysobjectswher
) score (score)1 A 882 B 763 C 664 C 905 B 776 A 567 B 778 c 679 A 44Select * from t a where score =(Select max (score) from t B where a. Name = B. Name)
Give an SQL statement in the ranking.Select (Select count (*) + 1 as ddFrom [test] As a where a. [F2] From [test] as BOrder by B. [F2];Well, here we will talk about SQL-related subqueries first.
The following describes the concept of a cross tabulation.Speaking of
SQL cross tabulation instance
It's a simple thing. Many people on the internet asked "How to implement cross tabulation ?", The following is an example I wrote. The database is based on SQL Server 2000.
-- ===================================================== ====================
--
VB + MS sqlserver is the most commonly used mode for developing database application systems. I have reviewed my previous posts and asked some questions about sqlserver, but I have very few correct answers, now I have posted my opinions on these issues. This time I will talk about the dynamic cross tabulation problem first.
To illustrate the problem, we use the instance database (northwind) provided by sq
In addition to cross-aggregation, a cross-tabulation also supports percentage calculation (horizontal and vertical.
PreviousArticleThe section describes how to create a cross tabulation.
Suppose we have the following data tables,
Create a
Recently, cross tabulation is required, and the company's requirements are complicated. Common cross tabulation tools are not suitable for use. if SQL statements are used, the workload is too large, so I tried to write a cross-table class by myself. let's look at the code.
Recently, cross tabulation is required, and the company's requirements are complicated. Common cross tabulation tools are not suitable for use. if SQL statements are used, the workload is too large, so I tried to write a cross-table class by myself. let's look at the code.
I originally wanted to write a summary about the application SERIES OF THE CRYSTAL REPORT, but the time was always unavailable. It seems that the Plan has been disrupted (heartache. I finished my work today. Let's take a look at some time. I wrote a cross tabulation example to illustrate the application of the cross tabulatio
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.