Can we make nested page block table in Salesforce?

Hello Shariq,

yes ,we can make nested Page block table. you can refer to the below given visualforce Page and Apex class.

visualforce Page

<apex:page controller="SearchAccountCon" tabStyle="Account">
<apex:form >
<apex:pageMessages />
<apex:inputText value="{!searchString}" />
<apex:commandButton value="search" action="{!search}"/>
<apex:pageBlock >
<apex:pageBlockTable value="{!acct}" var="acc">
<apex:column value="{!acc.Id}" />
<apex:column value="{!acc.description}" />
<apex:column >
<apex:pageBlockTable value="{!acc.contacts}" var="c">
<apex:column value="{!c.Id}"/>
<apex:column value="{!c.LastName}"/>
</apex:pageBlockTable>
</apex:column>
</apex:pageBlockTable>
</apex:pageBlock>
</apex:form>
</apex:page>

Apex class

public class SearchAccountCon {
public static String searchString {get; set; }
public static List<Account> acct{get;set;}

public static void search(){
try{
acct= Database.query('Select Name, description,(select id, Name,LastName From Contacts) From Account WHERE Name LIKE \'%'+searchString+'%\' Limit 100');
system.debug('ddd'+acct);
}
catch(Exception e){
ApexPages.addmessage(new ApexPages.message(ApexPages.severity.ERROR,'Please enter Account site'));
}
}

}