salesforce

1. setup->App Setup->Develop->Pages and create new Visulaforce page.
2. Setup -> My Personal Information -> Personal Information -> Edit check the checkbox development mode. When you run the page like this, https://ap1.salesforce.com/apex/MyTestPage. you will find the Page editor at the bottom of the page. You can write you page as well as the controller class associated with it, there it self.
3. Using EclipseIDE you can create the Visulaforce page and write the code.

• Determines if an expression is null (blank) and returns TRUE if it is. If it contains a value, this function returns FALSE.
• Text fields are never null, so using this function with a text field always returns false. For example, the formula field IF(ISNULL(new__c) 1, 0) is always zero regardless of the value in the New field. For text fields, use the ISBLANK function instead.
• Multi-select picklist fields are never null in s-controls, buttons, and email templates, so using this function with a multi-select picklist field in those contexts always returns false.
• Empty date and date/time fields always return true when referenced in ISNULL functions.
• Choose Treat blank fields as blanks for your formula when referencing a number, percent, or currency field in an ISNULL function. Choosing Treat blank fields as zeroes gives blank fields the value of zero so none of them will be null.
• Merge fields can be handled as blanks, which can affect the results of components like s-controls because they can call this function.
• When using a validation rule to ensure that a number field contains a specific value, use the ISNULL function to include fields that do not contain any value. For example, to validate that a custom field contains a value of ’1,’ use the following validation rule to display an error if the field is blank or any other number: OR(ISNULL(field__c), field__c<>1)

• Determines if an expression has a value and returns TRUE if it does not. If it contains a value, this function returns FALSE.
• Use ISBLANK instead of ISNULL in new formulas. ISBLANK has the same functionality as ISNULL, but also supports text fields. Salesforce.com will continue to support ISNULL, so you do not need to change any existing formulas.
• A field is not empty if it contains a character, blank space, or zero. For example, a field that contains a space inserted with the spacebar is not empty.
• Use the BLANKVALUE function to return a specified string if the field does not have a value; use the ISBLANK function if you only want to check if the field has a value.
• If you use this function with a numeric field, the function only returns TRUE if the field has no value and is not configured to treat blank fields as zeroes.

1. Text
2. HTML with Letter Head
3. Custom HTML
4. Visual force

Account Child relationship in salesforce

Account Contact and Opportunity of salesforce in schema builder

1. Master Detail
2. Many to Many
3. Lookup
4. Hierarchical (It is available only on User Object, we cannot create this relationship)

1. Make sure your report is a summary or matrix report. Tabular will not work.
2. Make sure you have the report grouped. <== where it states "Drop a field here to create a grouping" See Screenshot

1. It should have a field there.
2. Once you do that then Add Chart will get enabled...See Screenshot

1. Go to Setup | Customize for Standard Objects or Create for Custom Objects | Click on Record types
2. Then select the record type that you need to change
3. You'll see a section Picklists Available for Editing
4. You can specify which values should appear for the record type

Product2 prod = [ SELECT p.ProductCode, p.Name, p.Id, 
FROM Product2 p 

WHERE p.Id =: oppLineItem.PricebookEntry.Product2Id];

if(prod.Name.length()>80){

//This would get the first 90 characters of the stringProdName = prod.Name.SubString(0,80);  customobject__c.Name = prodName; }

I hope this helps... 

A little lesson in code sometime does not hurt anyone.

Thanks