Bootstrap 4 Navbar

The Navbar is shown on each page that the user navigates through the website. The bootstrap 4 nav component provides the different styles of the navbar. It also supports logo branding, easy navigation, quote buttons, and forms, etc.. Let's look into each one with an example.

The Navbar completely supports responsiveness depending on various screen sizes. To create default navbar, use .navbar class along with responsive class .navbar-expand-sm|md|lg|xl. To create menu items with the hyperlink, Add .navbar-nav class to your <ul> element and add .nav-item class to your each <li> element inherited by an <a> element with .nav-link class for hyperlink.

See the Pen Bootstrap 4 Navbar by Prime Study Hub (@PrimeStudyHub) on CodePen.

Navbar with Background

To create navbar with color variation, include any of the contextual classes (.bg-primary, .bg-secondary, .bg-warning, .bg-danger, .bg-success, .bg-light, .bg-dark, .bg-info) to your navbar.

See the Pen Bootstrap 4 Navbar with Background by Prime Study Hub (@PrimeStudyHub) on CodePen.

Navbar with Dropdown

See the Pen Bootstrap 4 Navbar with Dropdown by Prime Study Hub (@PrimeStudyHub) on CodePen.

Navbar with Forms and Buttons

You can include inline forms or buttons to your navbar.

See the Pen Bootstrap 4 Navbar with Forms by Prime Study Hub (@PrimeStudyHub) on CodePen.

Navbar External Content

The Navbar not only used as a menu, but it can also be used as an accordion toggle to show/hide external content. Here's an example of navbar external content,

See the Pen Bootstrap 4 Navbar External Content by Prime Study Hub (@PrimeStudyHub) on CodePen.

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FORCE ORDER in SQL Server

The FORCE ORDER is a query hint it executes the order of the tables exactly specified in a statement. When we use this query hint in a statement it will tell SQL server not to change the order of the joins in the query. Basically, the SQL server rearrange your joins to be in the order that it thinks it will be optimal for your query to execute. Now, Lets see the execution plan without the FORCE ORDER: The above execution plan demonstrates the optimal order of the joins returned by the SQL server. As you can see the order starts from the sales details and goes by bank details to employee details. Suppose if you don't want the SQL server to change the order of the joins in a query you can use FORCE ORDER to stop the default ordering. The syntax for FORCE ORDER query hint is, OPTION ( FORCE ORDER ); Now, Lets see the execution plan with the FORCE ORDER: select * from tbl_EmployeeDetails as e inner join tbl_BankDetails as b on e.Id=b.EmpID inner join tbl_S...

How to create comma separated values in SQL server?

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OPTION (MERGE JOIN) in SQL Server

OPTION (MERGE JOIN) in SQL Server The MERGE JOIN query hint is a best available join algorithm in SQL server. It is based on first sorting both data sets according to the join conditions and then traversing through the sorted data sets and finding matches. The MERGE JOIN itself is very fast, but it can be an expensive choice if sort operations are required. This produces the best optimal execution plan. The syntax is, OPTION ( MERGE JOIN ); Now, Lets see how to use MERGE JOIN with SELECT statement.? select * from tbl_EmployeeDetails as e inner join tbl_BankDetails as b on b.EmpId=e.Id OPTION(MERGE JOIN); The statement returned optimal execution plan is, The MERGE JOIN operator gets a row from each input and compares them. In above statement, it merges all joins and first sorting data sets and then traversing through the sorted data sets and finding matches, if they are equal the rows are returned. If they are not equal, the lower-value row is rem...

How to manipulate JSON data in SQL server?

Manipulate JSON data in SQL Server JavaScript Object Notation (JSON) is a lightweight popular data exchangeable format used across modern IoT platforms, web and mobile applications etc. It is a language independent textual data format. JavaScript Object Notation (JSON) is also used for storing unstructured data in log files or NoSQL Databases such as Microsoft Azure Cosmos DB. Many RESTful web services that allow us to store and retrieve JSON formatted texts among different protocols using different Endpoints. The example of JSON text is as follows, [{ "customer":"Michael", "products":["Watch","Mobile","Books"] }, { "customer":"Stuart", "products":["Laptop","Keyboard","Mouse"] } ] In this article you will understand the following, Read JSON data from table Modify JSON data in a table Validate JSON objects ...

OPTION Loop Join in SQL Server

The OPTION ( LOOP JOIN ) would enforce LOOP JOIN across all joins in the query. Using the OPTION ( LOOP JOIN ) appears to allows the query optimizer to join the tables using the nested loops in which ever order SQL server decides it is optimal. The OPTION clause must be a last clause in a statement. The syntax is, OPTION ( LOOP JOIN ); Now, Lets see how to use LOOP JOIN with SELECT statement.? select *from tbl_EmployeeDetails as e inner join tbl_BankDetails as b on b.EmpID=e.Id inner join tbl_SalesDetails as s on s.BankId=b.Id OPTION(LOOP JOIN); The statement returned execution plan is, The above statement loops through all the joins that starts from sales details and goes by bank details to employee details in which the order that SQL server thinks it is optimal. This does not follow the order of joins that we specify. Suppose, if you want the SQL server to follow the order of joins that you specify you have to use FORCE ORDER in OPTION clause. Howe...

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