Coding standards and guidelines are very important for any developer on the path to a successful career. A coding standard is a set of guidelines, rules and regulations on how to write code. They should be flexible enough or should take care of the situation where they should not prevent best practices for coding. They are basically the guidelines that one should follow for better understanding.
The concept behind implementing these guidelines, is that the consistency and uniformity in programming so that if multiple people are working on the same code, it becomes easier to communicate, share with or understand each other’s work.
With the goal of promoting good coding standards and guidelines I have created a document which can guide developers.
SQL SERVER – Guidelines and Coding Standards Part – 1
SQL SERVER – Guidelines and Coding Standards Part – 2
Guidelines and Coding Standards complete List Download
Additionally, if you want any other guidelines to be added to this list, please let me know via a comment here so I can add them to the list eventually. I personally follow the standards listed in the document and I also make sure that I follow that at all my customer’s place.
Reference: Pinal Dave (https://blog.sqlauthority.com)
57 Comments. Leave new
Hello Dave,
I’m having two tables
Table1: Table2:
ID Date Month Jan Feb Mar Remarks
1 1 Jan xx xx xx xxxxx
2 14 Jan xx xx xx xxxxx
3 26 Jan xx xx xx xxxxx
4 14 Feb xx xx xx xxxxx
5 13 Mar
I want distinct values of Month in Table1 to be the Column Name of Table2 as above said:
can you help me out
Thanks & Regards
Surendar K
Hello Dave,
I want distinct values of Month in Table1 to be the Column Name of Table2 as below dynamically
Table1:
ID Date Month
1 1 Jan
2 14 Jan
3 26 Jan
4 14 Feb
5 13 Mar
Table2:
Jan Feb Mar Remarks
Thanks & Regards
Surendar K
hi..
i want count all rows with group by and also count some specific rows with same group by statement.
department total_Emp waitng_list Joind_Emp
—————————————————————————
ABCD 50 10 40
CDEF 20 10 10
Apply this logic
select department,count(*) as total_emp,sum(case when status=’waiting list’ then 1 else 0 end) as waiting_list from table
i want need how to change to password in sql server 2005 to run vb 6.0.
my project not connection to change password in sql server 2005 not run in visual basic 6.0
Please tell me about data vault? I don’t know anything about the same. where can i find out docs?
CREATE FUNCTION employees_in_project
(@pr_number varchar(20))
RETURNS TABLE
AS
RETURN (SELECT Sum(Amount) as Amount
FROM MasterDetail
WHERE MasterDetail.code = @pr_number)
GO
In Analizer
SELECT *, employees_in_project(master.code ) as Amount FROM Master
GO
it not work what is error in query
Hi Shaikh,
As this is table-values function, you can not call it like this way.
You need to access it as:
SELECT *
FROM TableName master
CROSS APPLY employees_in_project(master.code)
Tejas
Hi,
I am new user.
This Question asked me in HCL tech.
My Ques. is how can see database?
Hello Ravi,
Do you want to see databases list in SSMS then use sys.databases catalog view.
If this is not what you want to know then please clarify your question.
Regards,
Pinal Dave
Another option is to run this
EXEC sp_databases
hi sir i m first use the primary key and then i m remove it
but there after removing primary key the only duplicate key allowed and null is not allowed in the table pls tell me how to allowed duplicate and null in table
good evening
hi sir i m using sql 2005. and my sir challege me for that ?
pls sir give me the reply
Hi Amit,
When we drop a primary key constraint from a table the NOT NULL property of column is not changed. To allow null make sure that column is nullable. Check the result of sp_help tableName command and if you found Nullable “no” then alter the table to allow null using below syntax:
ALTER TABLE tableName ALTER COLUMN columnName dataType NULL
Regards,
Pinal Dave
Hi amit,
Use this syntax for ur question
ALTER TABLE tableName ALTER COLUMN columnName dataType NULL
How to Pass a bulk of data from .net to sql server, i mean pass a datatable values from .net to sqlsever 2005 for insert into table, to avoid for loop of calling insert query function
Sorry JP, I think I have posted a wrong link. The correct link is:
https://docs.microsoft.com/en-us/sql/t-sql/functions/openxml-transact-sql?view=sql-server-2017
hi..
i’m new here.
here is my question.
there is a employee table.
I’ve to get the employee’s highest salary as well as corresponding name from that table.
could you please tell the Query for that
thanks…
kanagavel.N
select * from employee where salary=(select max(salary) from employee)
Hi Pinal ,
Can we move the system database to some other location at the time of installating sql server 2005 . These was a interview question asked from me by a company ?
Thanks and Regards
Ashish Gupta
Kanagavel,
Assuming that your table has duplicate employee names but unique employee IDs, the following query should give you the result:
SELECT EMPID, EMPLOYEENAME, MAX(SALARY)
FROM EMPLOYEE_TABLE
GROUP BY EMPID, EMPLOYEENAME
ORDER BY EMPID
Most likely there will be only one salary amount associated with en employee ID, Employee combination. However, assuming that you just need to find which employee name draws the highest salary, this query should help:
select top 1 employeename, MAX(salary)
from Employeetable
group by employeename
order by MAX(salary) desc
Hi,
Why @@rowcount is 0(without assigning to another variable) in the following case :
Create procedure getEmp
AS
SELECT *
FROM HumanResources.Employee
select @@rowcount
GO
It means the query doesn’t return any data
Hi,
Why @@rowcount is 0 in the following case :
Create procedure getEmp
AS
SELECT *
FROM HumanResources.Employee
if @@rowcount > 0
select @@rowcount
GO
– JB
The value of @@rowcount changes dynamically based on the statement. The IF statement doesn’t return any row so it becomes 0. You should always assign a value to a variable and use that variable