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For example, the results of an SQL query in PL/SQL are as follows:
Leaf
Wei
Hong
Sun
He
... Is omitted later
To generate the dictionary format:
{1, "Ye" },{ 2, "wei" },{ 3, "Hong" },{ 4, "Sun" },{ 5, "He "}...
First, copy the columns of PL/SQL, put them in a string,
Label:Dede SQL statement execution, when the query statistics result is 0 o'clock, does not output any value, when the data is normal.The workaround is to determine if the statistic result is empty, and the statistic field value is reset for null.The code is as follows: When the statistics are published today, if not, the out
Environment: SQL Server 2008 R2
Problem: Output information at query time
Solve:
One: Use the print function.
Such as:
print ' HelloWorld ';
Of course, the print function will not only be able to print strings, but also print integer data or floating-point data.
Such as:
print;
Print 39.27;
Print 0.11111111111111111111;
Two: The workaround method,
Tags: blog http ar sp problem log bs HTML asCase has two formats. Simple case function and case search function.--Simple case function Sexwhen ' 1 ' then ' Male ' when ' 2 ' then ' women ' else ' other ' end--case search function case when sex = ' 1 ' Then ' man ' when sex = ' 2 ' Then ' Women ' Else ' other ' ENDIn both of these ways, the same functionality can be achieved. The simple case function is relatively concise, but there are some limitations in function, such as write-judgement, compa
Summary of methods for PHP output of XML format data, php output of xml format
This example describes how PHP outputs XML format data. We will share this with you for your reference. The details are as follows:
Method 1:
The preceding example is run as follows:
Method 2:
Format is a very common but annoying method. The following is a complete overview of it for your query:
Formatting string forma ("% d", 12) means to format an integer character (I think it is to keep its shape unchanged)1). The format description always starts with % characters. The following describes the formats of d
In Javaweb application, the date returned through the AJAX query is similar to the following "2010-08-01 18:22:00.0", how to according to the hope of the results show that often cost some trouble, here provide two methods to solve this problem, for reference only. The format method is not perfect, but it can satisfy most of the needs.
One, the effect chart
Second, the original code
1. Analytic method
/**
*
The time format passed by the front end is "2016-07-11 11:13:10", and the format of the corresponding field ' Add_time ' in the datasheet is "2016-7-11", when SQL cannot be used directly with "where ' add_time ' = ' 2016-07-11 11:13:10 '. This can be done in the following ways:1. Use PHP's Strtotime () and date () to format
window.If an error is entered in osql, you can use the reset osql command to return to 1> the prompt character,1> sp_helpbd2> Reset1> sp_helpdb2> goTo stop osql, enter quit or exit. You can also press Ctrl + C to end a command or interrupt the query without exiting the osql utility.The osql utility can recognize not only-u,-P, and-S parameters. For more information about available osql parameters and osql, see the osql utility topic in the online gui
database to the Web page format file. In the actual application process, can also be designed to generate a large number of different styles of Web page storage in the database, the use of this library to easily achieve the output of various types of Web pages, expanding the scope of the application of database data content.
The above two methods can be used according to different requirements, in the imp
50 SQL Query Techniques, query statement examples, 50 SQL statements
Student (S #, Sname, Sage, Ssex) Student tableCourse (C #, Cname, T #) CurriculumSC (S #, C #, score) Orders tableTeacher (T #, Tname) Instructor tableProblem:1. query the student ID of all students whose s
1. Simple Query A simple Transact-SQL query only includes the select list, from clause, and where clause. They indicate the queried columns, the queried tables or views, and the search conditions. For example, the following statement queries the nick name and email fields in the testtable table with the name "Zhang San.
Select nickname, emailFrom testtableWhe
This article mainly introduced the PHP output XML format data method, combined with the example form summarizes the PHP commonly used XML format data output related operation skill, needs the friend can refer to the next
This article describes the PHP output XML
{Code ...} the above is the json obtained from the database query. The json result is output in the following format: {code ...} however, this data is not what I want. I want to convert this json into this format: {code ...} how can this problem be achieved? Thank you.
$select = $this->datas->
Format the data output by Bean: Write. In our struts application, if Bean: Write outputs a large double data, it will be represented in scientific notation by default, such as 1.20.e8.
We need to format it, for example, the kilobytes. That is, the output is 13,160,000.00.
For some phenomena, we use the
A project uses the ArcGIS JS API to develop a GIS presentation layer, but the GIS service uses geoserver, then load geoserver data and query data is completely different from before, the following introduction I use ArcGIS JS api+ A scenario that resolves GeoServer layer property queries during the GeoServer development process.Take the example of a layer city published in GeoServer. I am now querying the id=53090000000000 objects in the city layer an
= DF. Format (d );
In this way, dstr is changed to 1234567.1234 instead of 1.234567812345e7.Understand the output representation of floating point numbers in Java, and keep it easy to remember. Especially for enterprise applications that target common users, it is very important to format floating point numbers in proper places. For some
database management systems.
In the relational database management system, the relationship between data does not have to be determined when a table is created, and all information about an object is often stored in a table. When retrieving data, you can use the join operation to query information about different entities in multiple tables. Connection operations bring great flexibility to users. They can add new data types at any time. Create new
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