Select query for rows where condition 1

Question

Say I have a table, tb1, that has the following entries:
FName LName
Code
John Doe
xxx
Jane Doe
xxx
Steve Harper
x
Barrak Obama
x
George Bush
xxxx
Bill Clinton
xx
I'd like to write a select query that only lists the rows where the count for Code is > 1, i.e not display the last two rows from the above entry. How would I go about writing that select query.
Thanks.

Answer 1

Please post DDL, so that people do not have to guess what the keys, constraints, Declarative Referential Integrity, data types, etc. in your schema are. Learn how to follow ISO-11179 data element naming conventions and formatting rules. Temporal data should
use ISO-8601 formats. Code should be in Standard SQL as much as possible and not local dialect. 
This is minimal polite behavior on SQL forums. 
>> Say I have a table, tb1, that has the following entries: <<
Are you this rude or really ignorant and too lazy to read the Netiquette at the start to this forum? Why do you think you do not need a key? No DDL? No constraints? And , why, why do you think that “tb1” is a precise, ISO-11179 conforming table name? 
Let's make this a table of rude posters rated on a 4-star scale. 
CREATE TABLE Rude_Posters
(first_name VARCHAR(15) NOT NULL, 
 last_name VARCHAR(15) NOT NULL, 
 PRIMARY KEY (first_name, last_name), 
 rudeness_code VARCHAR (4) NOT NULL
   CHECK (rudeness_code IN ('x', 'xx', 'xxx', 'xxxx'));
INSERT INTO Rude_Posters
VALUES
('John', 'Doe', 'xxx'), 
('Jane', 'Doe', 'xxx'), 
('Steve', 'Harper', 'x'), 
('Barrack', 'Obama', 'x'), 
('George', 'Bush', 'xxxx'), 
('Bill', 'Clinton', 'xx');
>> I'd like to write a SELECT query that only lists the rows where the count for rudeness_code is > 1, i.e not display the last two rows from the above entry. << 
The rudeness scale is based on stars, so to ask for an integer value is like saying “on a scale from 1 to 10, what is the color of your favorite letter of the alphabet?”
Next, the number of stars and your narrative do not match. Did you want to say WHERE rudeness_code IN ('xx' 'xxx', 'xxxx')? 
Please stop programming SQL until you have gotten more education. At this point, you do not know enough to ask a question. 
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