Database Discussion Boards

Member 9131839 wrote:
provide code

No. People are not going to just give you their code they worked hard for. You have to work on your own project and when you run into trouble with a part of it, then ask for help.

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

Hi,

I am getting the above error on MySQL stored procedure..

Kindly help...

here is the error followed by the code:

SQL

1064 - You have and error in your SQL syntax. check the manual that corresponds to your MySQL server version for the right syntax to use near '
END
ELSE
BEGIN
INSERT INTO salary_slips (salary_slip_month, salary_slip_y'
at line 13

SQL

BEGIN
    SET param_slip_released = FALSE;

    IF EXISTS (SELECT salary_slip_id FROM salary_slips WHERE salary_slip_month = param_slip_month AND salary_slip_year = param_slip_year) THEN
    BEGIN
        SET param_slip_released = (SELECT salary_slip_released FROM salary_slips WHERE salary_slip_month = param_slip_month AND salary_slip_year = param_slip_year);

        IF param_slip_released = FALSE THEN
        BEGIN
            SELECT * FROM salary_slips;
        END
    END
    ELSE
    BEGIN
        INSERT INTO salary_slips (salary_slip_month, salary_slip_year) VALUES (param_slip_month, param_slip_year);
    END
END;

jrahma wrote:
VALUES (<layer>param_slip_month, param_slip_year)

I cannot see where you set the values of these parameters!

Never underestimate the power of human stupidity
RAH

Hi,

I have a list to populate. I have a query to populate it in mssql 2008. It involves three tables. If the query returns the value then I populate it and it is done. But , if the query doesnot return anything then I want to run another select statement because I do not want to leave the list view empty. I have to populate at least the names of the client. It could be something simple but I am just beginning to use mssql so I am stuck.

Select C.name as Client ,
B.Detail as Detail from tableA A
left join tableB B on B.bID = A.bID
Left join tableC C on C.clientID = B.clientID
where aID= '100';

if does not return anything,

I want to run another sql to atleast get the name of the client even if there is no related detail with that client.

second sql would be

Select C.name as Client from tableA A

Left join tableC C on C.clientID = A.bID
where aID= '100'

[P.S. the bID field of Table A could actually either be bID as is or C.clientID inserted into bID field of Table C.]

I am confident about the queries but its just about extracting the values from the result.

Thanks,

Look at @@RowCount[^]
Remember that it changes with the next executed statement.

I don't understand the LEFT JOIN between A.bID and C.clientID. You infer that the second query will always get the answer you are looking for so, an INNER JOIN is appropriate. With further examiniation, only B.Detail may be NULL if you have a valid aID. It is usually easier to let the client handle the NULL column than two types of data structures.

The query below will always have data in Client. Detail may or may not be NULL. This is assuming that aID is valid.

SQL

SELECT
    C.name AS Client,
    B.Detail AS Detail
FROM
    tableC C
INNER JOIN
    tableA A
    ON (C.clientID = A.bID)
LEFT JOIN
    tableB B
    ON (C.clientID = B.clientID)
WHERE
    aID = '100'

You can use the Case Statement for this:
Declare a variable @Client Varchar(100) = NULL, now put
Select C.name as Client , @Client = C.name,
B.Detail as Detail from tableA A
left join tableB B on B.bID = A.bID
Left join tableC C on C.clientID = B.clientID
where aID= '100';

Now check in Case like this::
CASE WHEN @Client IS NULL THEN
... Put Your Another Select Query Here ...
END

- Happy Coding -
Vishal Vashishta

Hi There

You can do a rowcount and if a count on the no of rows is zero, then Select .....

For example

IF EXISTS (SELECT COUNT(*) FROM tablename)
BEGIN
SELECT ..... FROM TABLENAME
END
-- if no data then do... that is if row count is zero
ELSE
SELECT ..... FROM TABLENAME

Another method is to use a variable to hold the number of records and based on the number of records, decide which sql statement to execute.

For example

--PUR ROW COUNT IN A VARIABLE
DECLARE @rowcount INT
SELECT @rowcount = COUNT(*) FROM tablename
IF @rowcount >= 27 --SPECIFY the number expected
BEGIN
PRINT 'TEST-1' --OR SELECT STATEMENT
END
ELSE
BEGIN
PRINT 'TEST-2' -- OR SELECT STATEMENT
END

hope this helps.

Cheers

TRY THIS

Declare @rowcount int

select @rowcount = (Select count(*) from tableA A
left join tableB B on B.bID = A.bID
Left join tableC C on C.clientID = B.clientID
where aID= 100)

if @rowcount > 1

begin

Select C.name as Client ,
B.Detail as Detail from tableA A
left join tableB B on B.bID = A.bID
Left join tableC C on C.clientID = B.clientID
where aID= 100

else

Select C.name as Client from tableA A
Left join tableC C on C.clientID = A.bID
where aID= 100

end

Hope this will help Smile | :)

I have one SQL Table with 2 columns as below

Column1: ProductionDate - DateTime - Not NULL
Column2: Quantity - Int - Not NULL

Now There are 2 Records in Table

1-1-2012, 5
1-3-2012, 7

Output of Result should be as below if i give date range StartDate as 1-1-2012 and EndDate as 1-15-2012

1-1-2012 5
1-2-2012 0
1-3-2012 7
1-4-2012 0
1-5-2012 0
1-6-2012 0
.
.
.
1-15-2012 0

Means Query should return all the dates of given range with Quantity and if no entry in Table then 0 for Quantity.

How to Do it? Please suggest with Query

You could accomplish this with a script rather than a single query. I have not run this and if you are allergic to table vars then stop reading. Presuming you have a begin date that is less than or equal to the end date you can proceed like this...

SQL

declare @loopDate as datetime
declare @dateRange as table ( aDate datetime )

set @loopDate = @beginDate
insert into @dateRange (aDate) values (@loopDate )  -- beginning of your date range

while @loopDate < @endDate 
begin
  Dateadd(day, @loopDate, 1)
  insert into @dateRange (aDate) values (@loopDate )
end

select aDate, isnull(quantity, 0)
from 
yourTable a
left outer join @dateRange b on
  b.aDate = a.Productiondate

I have not tested this. There might be a syntax flaw. Flame away. - Bill O'Brien

Usually someone will say use a generated (permanent) table, however your solution seems logical.

P.S. I have not tested it either. I hope it will work for rahulpatel112.

It is amazing what you can find in these forums if you look. Bob has got it right and if you had even looked just a little further you would have found this answer[^] 4 threads down!

Never underestimate the power of human stupidity
RAH

If you need it to be a query and not a Stored Procedure you can try this:

WITH DateRange(Date) AS
     (
         SELECT  @StartDate Date
         UNION ALL
         SELECT  DATEADD(day, 1, Date) Date
         FROM    DateRange
         WHERE   Date < @EndDate
     )
SELECT  dr.date
       ,case mt.quantity when null then 0 else mt.quantity end quantity
FROM    DateRange dr
LEFT OUTER JOIN MyTable mt
ON      dr.date = mt.productiondate

I haven't tested it, but you'll get the idea.

Light moves faster than sound. That is why some people appear bright, until you hear them speak.
List of common misconceptions

DECLARE @TargetDate SMALLDATETIME
DECLARE @InitialDate SMALLDATETIME
SET @InitialDate = '06-19-2012'
SET @TargetDate = '06-25-2012'
WHILE @InitialDate <= @TargetDate
BEGIN
PRINT @InitialDate
SELECT @InitialDate = DATEADD( D, 1, @InitialDate )
END

- Happy Coding -
Vishal Vashishta

i need to make a duplicate copy of an existing database with a new name in sql server and this has to be done using QUERY ONLY,

i tried to take a backup and restore but that restores with the same name...

Look here: MSDN: How to: Restore a Database to a New Location and Name (Transact-SQL)[^]

Sandeep Mewara
[My last tip/trick]: Server side Delimiters in ASP.NET[^]

thank you that worked for an extent, but still finding a bit of problem when trying to restore the database from sql query using c# in asp .net

when i try to restore it says the mdf file location is in correct but when i try to run the same query in sql it works perfectly, any idea on what iam doing wrong....

also how do i know the logical name of the db, since i will be restoring it in the runtime i cant afford it to come randomly, when i tested sometimes it comes as master and mastlog and sometimes it comes as the db name i have backed up...

nvarunkumar wrote:
QUERY ONLY

Why? That is a rather inefficient approach...

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

because i have backup and restore at runtime in asp .net, so if i get the query i can put it in sqlcommand in asp...

I am attempting to put a database into the Data-Tier application model, and the wizards (being MS Wizards) are painful and lack error reporting.

So, I'm trying to export my database as scripts, and import the scripts into the DAC model.

Here's the problem: over the years, our tables have undergone modifications. What I don't get is why SQL Server seems to have to regenerate a table from script in sequence (here's a sample)

SQL

CREATE TABLE [dbo].[SampleUserMaster](
    [SampleUserMasterKey] [dbo].[udt_keyfield] IDENTITY(1,1) NOT NULL,
    [UserKey] [dbo].[udt_keyfield] NULL,
    [rowguid] [uniqueidentifier] ROWGUIDCOL  NULL,
    [SampleKey] [dbo].[udt_keyfield] NOT NULL,
    [UserMasterKey] [dbo].[udt_keyfield] NULL,
    [AddressRefusedUnknownFlag] [dbo].[udt_logical] NULL,
    [SampleCompletedFlag] [dbo].[udt_logical] NULL,
    [SampleCompletedDate] [datetime] NULL,
    [IncomingSampleActionDate] [datetime] NULL,
    [IncomingSampleActionCodesKey] [dbo].[udt_keyfield] NULL,
    [IncomingSampleActionCode] [dbo].[udt_sharedcode] NULL,
    [IncomingSampleActionDescription] [dbo].[udt_sharedcodedescription] NULL,
    [LockSession] [uniqueidentifier] NULL,
    [LockTime] [datetime] NULL,
    [LockVersion] [timestamp] NOT NULL,
    [WWClearanceCodeKey] [dbo].[udt_keyfield] NULL
) ON [PRIMARY]
SET ANSI_PADDING OFF
ALTER TABLE [dbo].[SampleUserMaster] ADD [WWClearanceCode] [dbo].[udt_sharedcode] NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [WWClearanceDescription] [dbo].[udt_sharedcodedescription] NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [WWClearanceCodeDateTime] [datetime] NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [WWClearanceCodeAuthorityInvolvedKey] [dbo].[udt_keyfield] NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [IsElligibleWorkRelease] [dbo].[udt_logical] NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [DepartmentKey] [dbo].[udt_keyfield] NOT NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [CreatedDateTime] [datetime] NOT NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [ModifiedDateTime] [datetime] NOT NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [VisitorListLastChangedDateTime] [datetime] NULL
ALTER TABLE [dbo].[SampleUserMaster] ADD [IsSealed] [bit] NULL
 CONSTRAINT [PK_SampleUserMasterkey] PRIMARY KEY CLUSTERED
(
    [SampleUserMasterKey] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

Note the alter table statements for each column added over time - why is this???!?!?!

I have 20,000+ tables, so obviously I can't manually edit these to move the added columns into the definition itself - is there a way to make it generate a table as a table without all the alter table commands for added columns? Any ideas?

This fails Data-Tier Application importing; it will not run any of the alter table statements, thus these columns never make the model, thus the stored procs and views fail whereas they reference missing columns.

Is there a way to generate a CREATE TABLE statement with ALL Columns in is? I don't get the way it does it now... Thanks in advance.

I've exported the DB, and restored it and it still keeps the full history of alters to add columns, and generates them as individual statements....

Think of how stupid the average person is, and realize half of them are stupider than that. - George Carlin

Try using the SqlPubWiz to generate the scripts.

P.S. Oh, and there's an article on here that generates scripts.

Thanks for the tip; trying it now. (SQL Pub Wiz)

Think of how stupid the average person is, and realize half of them are stupider than that. - George Carlin