Creating only one table in a stored procedure - sql

Question

Is it possible to create a table only once while executing the same procedure several times eg:
create procedure grg
(#firstname varchar(100),
#lastname varchar(100),
#dob date,
#loginID varchar(100),
#password varchar(100),
#email varchar(100),
#SSN varchar(11)
)
as
begin
create table............ <- only once
select
#firstname, #lastname,
#dob, #loginID, #password, #email,
#SSN
If(.....)

Answer 1

you can use CREATE TABLE IF NOT EXISTS
Keep in mind the if the table already exists it will show a warning not an error.
You can ignore the warning. If you want to temporarily disable the warning you can do it as follows.
SET sql_notes = 0;
CREATE TABLE IF NOT EXISTS
SET sql_notes = 1;

Answer 2

Yeah with sql you can use temp tables just prefix them with a hash.
#
These tables would only exist on the current session
If you really want the stored proc to handle the creation of the table then you can create the table on the stored procedure's definition. Just make sure to validate if table already exists so you don't get errors.
CREATE PROCEDURE XX
AS
BEGIN
IF EXISTS (SELECT * FROM sysobjects WHERE name = <table_name>)
BEGIN
<---INSERT CREATE TABLE SCRIPT HERE---->
END
<---POPULATE HERE--->
END

Answer 3

Try following
CREATE PROCEDURE grg
(#firstname VARCHAR(100),
#lastname VARCHAR(100),
#dob DATE,
#loginID VARCHAR(100),
#password VARCHAR(100),
#email VARCHAR(100),
#SSN VARCHAR(11)
)
AS
BEGIN
IF NOT EXISTS
(
SELECT * FROM sysobjects WHERE name = 'myTable' AND xtype = 'U'
)
BEGIN
CREATE TABLE myTable(Name VARCHAR(64) NOT NULL);
END;
SELECT * FROM myTable;
END;