![]() ![]() Because the statement used TOP WITH TIES, it returned three more products whose list prices are the same as the third one. In this example, the third expensive product has a list price of 6499.99. The following statement returns the top three most expensive products: SELECT TOP 3 WITH TIES The output is: 3) Using TOP WITH TIES to include rows that match the values in the last row The production.products table has 321 rows, therefore, one percent of 321 is a fraction value ( 3.21), SQL Server rounds it up to the next whole number which is four ( 4) in this case. The following example uses PERCENT to specify the number of products returned in the result set. Here is the result: 2) Using TOP to return a percentage of rows The following example uses a constant value to return the top 10 most expensive products. We will use the production.products table in the sample database for the demonstration. It will include not only the first expensive product but also the second one, and so on. To avoid this, you can use TOP 1 WITH TIES. However, if two or more products have the same prices as the most expensive product, then you miss the other most expensive products in the result set. Note that WITH TIES may cause more rows to be returned than you specify in the expression.įor example, if you want to return the most expensive products, you can use the TOP 1. The WITH TIES allows you to return more rows with values that match the last row in the limited result set. The PERCENT keyword indicates that the query returns the first N percentage of rows, where N is the result of the expression. The expression is evaluated to a float value if PERCENT is used, otherwise, it is converted to a BIGINT value. expressionįollowing the TOP keyword is an expression that specifies the number of rows to be returned. In this syntax, the SELECT statement can have other clauses such as WHERE, JOIN, HAVING, and GROUP BY. The following shows the syntax of the TOP clause with the SELECT statement: SELECT TOP (expression) Ĭode language: SQL (Structured Query Language) ( sql ) Therefore, the result set is limited to the first N number of ordered rows. The SELECT TOP clause allows you to limit the number of rows or percentage of rows returned in a query result set.īecause the order of rows stored in a table is unspecified, the SELECT TOP statement is always used in conjunction with the ORDER BY clause. Through.Summary: in this tutorial, you will learn how to use the SQL Server SELECT TOP statement to limit the rows returned by a query. If there are more than zero rows returned, theįunction fetch_assoc() puts all the results into an associative array that we can loop Then, the function num_rows() checks if there are more than zero The next line of code runs the query and puts the resulting data into a "" Ĭode lines to explain from the example above:įirst, we set up an SQL query that selects the id, firstname and lastname columns from the MyGuests $sql = "SELECT id, firstname, lastname FROM MyGuests" Įcho "id: ". ![]() PHP Examples PHP Examples PHP Compiler PHP Quiz PHP Exercises PHP Certificateĭie("Connection failed: ". PHP - AJAX AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll PHP XML PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM MySQL Database MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data ![]() PHP OOP PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Interfaces PHP Traits PHP Static Methods PHP Static Properties PHP Namespaces PHP Iterables PHP Advanced PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP Exceptions PHP Forms PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete Superglobals $GLOBALS $_SERVER $_REQUEST $_POST $_GET PHP RegEx
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