How to start loading from the middle of the excel file in data loader?

1. Go to Settings in Apex Data Loader.

2. Set "Start at Row" field to start the process from the mentioned row number from the excel file.

Types of Reports in Salesforce?

Tabular

     Tabular reports are the simplest and fastest way to look at data. Similar to a spreadsheet, they consist simply of an ordered set of fields in columns, with each matching record listed in a row. Tabular reports are best for creating lists of records or a list with a single grand total. They can't be used to create groups of data or charts, and can't be used in dashboards unless rows are limited. Examples include contact mailing lists and activity reports.

Summary

     Summary reports are similar to tabular reports, but also allow users to group rows of data, view subtotals, and create charts. They can be used as the source report for dashboard components. Use this type for a report to show subtotals based on the value of a particular field or when you want to create a hierarchical list, such as all opportunities for your team, subtotaled by Stage and Owner. Summary reports with no groupings show as tabular reports on the report run page.

Matrix

     Matrix reports are similar to summary reports but allow you to group and summarize data by both rows and columns. They can be used as the source report for dashboard components. Use this type for comparing related totals, especially if you have large amounts of data to summarize and you need to compare values in several different fields, or you want to look at data by date and by product, person, or geography. Matrix reports without at least one row and one column grouping show as summary reports on the report run page.

Joined

     Joined reports let you create multiple report blocks that provide different views of your data. Each block acts like a “sub-report,” with its own fields, columns, sorting, and filtering. A joined report can even contain data from different report types.

jQuery Syntax?

Basic syntax is: $(selector).action()

• A $ sign to define/access jQuery
• A (selector) to "query (or find)" HTML elements
• A jQuery action() to be performed on the element(s)

Examples:

$(this).hide() - hides the current element.
$("p").hide() - hides all <p> elements.
$(".test").hide() - hides all elements with class="test".
$("#test").hide() - hides the element with id="test".

Ready Event in jQuery?

Ready Event in jQuery is to prevent any jQuery code from running before the document is finished loading (is ready).

It is good practice to wait for the document to be fully loaded and ready, before working with it. This also allows you to have your JavaScript code before the body of your document, in the head section.

The handler passed to .ready() is guaranteed to be executed after the DOM is ready, so this is usually the best place to attach all other event handlers and run other jQuery code.

Events in jQuery?

$(document).ready()
The $(document).ready() method allows us to execute a function when the document is fully loaded.

click()
The function is executed when the user clicks on the HTML element.

dblclick()
The function is executed when the user double-clicks on the HTML element:

mouseenter()
The function is executed when the mouse pointer enters the HTML element:

mouseleave()
The mouseleave() method attaches an event handler function to an HTML element.
The function is executed when the mouse pointer leaves the HTML element:
  
mousedown()
The function is executed, when the left mouse button is pressed down, while the mouse is over the HTML element:
  
mouseup()
The function is executed, when the left mouse button is released, while the mouse is over the HTML element:

hover()
The first function is executed when the mouse enters the HTML element, and the second function is executed when the mouse leaves the HTML element.

focus()
The function is executed when the form field gets focus.

blur()
The function is executed when the form field loses focus.

jQuery Fading Methods?

jQuery has the following fade methods:

• fadeIn()
• fadeOut()
• fadeToggle()
• fadeTo()

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jQuery fadeIn()

The jQuery fadeIn() method is used to fade in a hidden element.

Syntax:

$(selector).fadeIn(speed,callback);

The optional speed parameter specifies the duration of the effect. It can take the following values: "slow", "fast", or milliseconds.
The optional callback parameter is the name of a function to be executed after the fading completes.
The following example demonstrates the fadeIn() method with different parameters:

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jQuery fadeOut()

The jQuery fadeOut() method is used to fade out a visible element.

Syntax:

$(selector).fadeOut(speed,callback);

The optional speed parameter specifies the duration of the effect. It can take the following values: "slow", "fast", or milliseconds.
The optional callback parameter is the name of a function to be executed after the fading completes.
The following example demonstrates the fadeOut() method with different parameters:

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jQuery fadeToggle()

The jQuery fadeToggle() method toggles between the fadeIn() and fadeOut() methods.
If the elements are faded out, fadeToggle() will fade them in.
If the elements are faded in, fadeToggle() will fade them out. 

Syntax:

$(selector).fadeToggle(speed,callback);

The optional speed parameter specifies the duration of the effect. It can take the following values: "slow", "fast", or milliseconds.
The optional callback parameter is the name of a function to be executed after the fading completes.
The following example demonstrates the fadeToggle() method with different parameters:

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jQuery fadeTo()

The jQuery fadeTo() method allows fading to a given opacity (value between 0 and 1).

Syntax:

$(selector).fadeTo(speed,opacity,callback);

The required speed parameter specifies the duration of the effect. It can take the following values: "slow", "fast", or milliseconds.
The required opacity parameter in the fadeTo() method specifies fading to a given opacity (value between 0 and 1).
The optional callback parameter is the name of a function to be executed after the function completes.

jQuery Sliding Methods

jQuery Sliding Methods

With jQuery you can create a sliding effect on elements.
jQuery has the following slide methods:

• slideDown()
• slideUp()
• slideToggle()

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jQuery slideDown() Method

The jQuery slideDown() method is used to slide down an element.

Syntax:

$(selector).slideDown(speed,callback);

 

The optional speed parameter specifies the duration of the effect. It can take the following values: "slow", "fast", or milliseconds.
The optional callback parameter is the name of a function to be executed after the sliding completes.
The following example demonstrates the slideDown() method:

Example

$("#flip").click(function(){
  $("#panel").slideDown();
});

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jQuery slideUp() Method

The jQuery slideUp() method is used to slide up an element.

Syntax:

$(selector).slideUp(speed,callback);

 

The optional speed parameter specifies the duration of the effect. It can take the following values: "slow", "fast", or milliseconds.
The optional callback parameter is the name of a function to be executed after the sliding completes.
The following example demonstrates the slideUp() method:

Example

$("#flip").click(function(){
  $("#panel").slideUp();
});

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jQuery slideToggle() Method

The jQuery slideToggle() method toggles between the slideDown() and slideUp() methods.
If the elements are slide down, slideToggle() will slide them up.
If the elements are slide up, slideToggle() will slide them down. 

$(selector).slideToggle(speed,callback);

 

The optional speed parameter can take the following values: "slow", "fast", milliseconds.
The optional callback parameter is the name of a function to be executed after the sliding completes.

The following example demonstrates the slideToggle() method:

Example

$("#flip").click(function(){
  $("#panel").slideToggle();
});