• Gopikrishna Dasari
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We can insert 5 million records through dataloader Is it best practice to insert maximum number of records or not?

If not why it is not best pracirtce ?

can anyone help me regarding this?
I have one date input field and we have some list of records when we enter the date filed. the date is grater than the enter date filed those records only want to show in display list how can we achieve this. In LWC any one can help me in this.
I have a map like this
 map<Integer,string> mapof = new map<integer,string> {1=>'Ramu',2=>'suresh'3='ramesh' 4=>'Ramu'};

I want to revrse this map 
 map<string,Integer> mapof1 = new map<integer,string> {'Ramu'=>1,'suresh'=>2,'ramesh' =3,'Ramu'=>4};

how can we do this?
 
Above question in trigger we used @future method to update the record this time shall i get any error?

please any one can help in this,

Both questions are different I want answer for both questions
I have one date input field and we have some list of records when we enter the date filed. the date is grater than the enter date filed those records only want to show in display list how can we achieve this. In LWC any one can help me in this.
I have a map like this
 map<Integer,string> mapof = new map<integer,string> {1=>'Ramu',2=>'suresh'3='ramesh' 4=>'Ramu'};

I want to revrse this map 
 map<string,Integer> mapof1 = new map<integer,string> {'Ramu'=>1,'suresh'=>2,'ramesh' =3,'Ramu'=>4};

how can we do this?