What is the T-SQL command to check for NULL or '' in a field in one statement? I would like to change the following code to be more readable (without the OR).
IF @agent IS NULL OR @agent = ''
Thanks!
Hello experts!
I have a case statement that provides filtering of hours during certain days of the week. An example is the data I want to show on Sunday is different from the rest of the week. I am using....
Code Snippet
WHERE ((CASE WHEN Datepart(dw, TestDateTime) = 1 AND datepart(hh, TestDateTime) BETWEEN 8 AND 22 THEN 1 WHEN Datepart(dw, TestDateTime)
>= 2 AND datepart(hh, TestDateTime) BETWEEN 6 AND 23 OR
datepart(hh, TestDateTime) BETWEEN 0 AND 2 THEN 1 ELSE 0 END) >= @ShowCore)
Esentially it gives a parameter (@showcore) to where it shows the filtered hours when 1 is selected, and all hours if 0 is selected.
Basically, Sunday I want to show transaction from between 8am and 10pm, All other days would be 12am - 2am and 6am to 11:59:59 when selecting 1 as the parameter.
Any help is appreciated.
I have two SSIS packages that import from the same flat file into the same SQL 2005 table. I have one flat file connection (to a comma delimited file) and one OLE DB connection (to a SQL 2005 Database). Both packages use these same two Connection Managers. The SQL table allows NULL values for all fields. The flat file has "empty values" (i.e., ,"", ) for certain columns.
The first package uses the Data Flow Task with the "Keep nulls" property of the OLE DB Destination Editor unchecked. The columns in the source and destination are identically named thus the mapping is automatically assigned and is mapped based on ordinal position (which is equivalent to the mapping using Bulk Insert). When this task is executed no null values are inserted into the SQL table for the "empty values" from the flat file. Empty string values are inserted instead of NULL.
The second package uses the Bulk Insert Task with the "KeepNulls" property for the task (shown in the Properties pane when the task in selected in the Control Flow window) set to "False". When the task is executed NULL values are inserted into the SQL table for the "empty values" from the flat file.
So using the Data Flow Task " " (i.e., blank) is inserted. Using the Bulk Insert Task NULL is inserted (i.e., nothing is inserted, the field is skipped, the value for the record is omitted).
I want to have the exact same behavior on my data in the Bulk Insert Task as I do with the Data Flow Task.
Using the Bulk Insert Task, what must I do to have the Empty String values inserted into the SQL table where there is an "empty value" in the flat file? Why & how does this occur automatically in the Data Flow Task?
From a SQL Profile Trace comparison of the two methods I do not see where the syntax of the insert command nor the statements for the preceeding captured steps has dictated this change in the behavior of the inserted "" value for the recordset. Please help me understand what is going on here and how to accomplish this using the Bulk Insert Task.
Am I right in assuming that when I have a column where all fields contain NULL, this does not increase the total data storage size if my database? Also, what kind of impact would it have on performance?
And what if I inserted "" in varchar columns? I would think the increase in size would be marginal?
The reason I'm asking is that I want to use an existing table and stored procedures for another purpose, but only need half of the columns. But it would significantly simplify application development.
Will the fuzzy grouping task match a null value to an empty string (or spaces)? I've got 5 columns I'm matching on, and one of them may be null for certain rows but an empty string for others. Given the 4 other columns may match, will this difference stop similar columns being grouped together?
(Someone's modified my grouped data since it was deduped, which takes a while, and I'm hoping for a quick answer on this).
Thanks in advance.
Ben
I have a Stored Procedure as followsUSE [MyDataBase]
GO
/****** Object: StoredProcedure [dbo].[SPLogins] Script Date: 05/24/2008 21:58:50 ******/
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER ON
GO
Create PROCEDURE [dbo].[SPLogins]
(
@LoginName varchar(50), @LoginD int output,
)
AS
Select @LoginID = LoginID From MyDatabase Where (LoginName Is not Null) and @LoginName = LoginName
I am trying to check for a null value in the Stored Procedure. I dont' get an error, but it doesn't catch the "null" and gives an error when there is a null value
What Is the correct wayt to go about it.
I want to check when a null value is being inserted in the column in my table using my existing trigger.
At the moment i have eliminated duplicates, but instead of saving the duplicate a null value is placed into the column if there is a duplicate entry.
From standard SELECT need to display specific column values normally, together with any NULLs in the same column not as NULL. My below effort parses however does not change to <new_value>.
SELECT[Server],
[db_name],
(CASE WHEN last_db_bkup_date IS NULL THEN '<new_value>' ELSE last_db_bkup_date END) AS last_bkup_date, [Backup Age (Hours)]
FROM [tbl]
Hi,
I have an SSIS Package. I am using script component to loop through input columns and their values. I am not able to do Null checking. The code is as below. In place of dashes , I want to do null checking but am not able to do. I tried vbNull, IsNull, TypeOf, System.dbNull but nothing is working. I guess am missing something here. Can anyone help me with this.
For Each column In Me.ComponentMetaData.InputCollection(0).InputColumnCollection
columnValue = rowType.GetProperty(column.Name)
If Not --------------- Then
RowData += ((FormatElement(column.Name) + ReplaceSpecialChars(columnValue.GetValue(Row, Nothing).ToString()) + FormatElement(column.Name, True)))
End If
Next
Thanks in Advance.
Hi,
i wanna know how can i check a table has datas inside, because i wanna use delete from table and if table is empty i dont wanna run this statement.
thanks in advance
This is probably an easy one.
What is best way to determine if a SqlDataSource is empty (i.e. the query produced no results) in the CodeBehind?
I'm using this:
if (SqlDataSource1.SelectCommand.Contains(String.Empty))
{
//Add code for scenario here.
}
It seems to work, but something just doesn't feel right about it for some reason.
Thanks
declare @user varchar(30) = ''
if(@user is not null or @user <> '')
BEGIN
print 'I am not empty'
END
ELSE
BEGIN
print 'I am empty'
ENd
The output should be 'i am empty' but when i execute this i am getting ' i am not empty'. even i did browse through but i don't find the difference in my logic.
I am using the below query to calculate column values. But I need to return zero when a column values is empty or null.
select [Funding] [Fundings],
[Original] AS [Originals],
[Variance] = SUM([Previous_Year]-[Current_Year]),
[SumValue] = SUM([CurrentYear]/4),
[ActualValue] = SUM([Variance] * 0.75),
[FinanceYear],
[New Value] = SUM([Previous_Year]+[Current_Year])
from Finance
GROUP BY [Original], [FinanceYear]
Hi, is there a way I can check if a table is empty and contains norows?I have a Table1 which being dynamic can sometimes end up with nowcolumns what so ever. I'm using Table1 in one of my views along with 2other tables and I would like put a condition at the...something likeAND Table1 IS NOTEMPTYIs there a way to do this in MS SQL?Many thanksYas
View 7 Replies View RelatedI want to check if a table is empty using query code?
How to do this?
On my office PC I have a strange problem with Data Flow Tasks. When I check-in a package into Source Control (Team Foundation) I usually have some empty Data Flow Tasks in the packages...even if I haven't changed that Flow Task.
This is really frustrating cause when running the package all goes well, but after a whil you notice that some tables are empty.
Does anyone know what the problem is?
i have a trigger on a table right now... when fields are inserted, theres a text field inserted and i want to check if that text field = '' (the empty string, not NULL) and if it doesn't equal that, then perform some row updates on other tables, but if it is empty, to not do anything else in the trigger... right now i have this:
Code:
IF ((SELECT Note FROM XATPoDetail WHERE ReqNbr = (SELECT ReqNbr FROM Inserted)) LIKE(''))
Note is the text field, XATPoDetail is the table where its being inserted into. I had to do the select FROM the table because it wouldn't let me select a text data type from the "Inserted" virtual table
but it tells me me "Error 279: The text, ntext, and image data types are invalid in this subquery or aggregate expression"
thanks
i have a trigger on a table right now... when fields are inserted, theres a text field inserted and i want to check if that text field = '' (the empty string, not NULL) and if it doesn't equal that, then perform some row updates on other tables, but if it is empty, to not do anything else in the trigger... right now i have this:
IF ((SELECT Note FROM XATPoDetail WHERE ReqNbr = (SELECT ReqNbr FROM Inserted)) LIKE(''))
Note is the text field, XATPoDetail is the table where its being inserted into. I had to do the select FROM the table because it wouldn't let me select a text data type from the "Inserted" virtual table
but it tells me me "Error 279: The text, ntext, and image data types are invalid in this subquery or aggregate expression"
thanks
I am using SSDT to deploy my database project. This project has a post deployment script and i am creating a new user in this post deployment script. I have used sqlcmd variable to capture the username. I am doing a null/empty check for this variable and my code looks like below.
IF (([$(UserName)] IS NOT NULL) OR ([$(UserName)] <> ''))
BEGIN
CREATE USER [$(UserName)] WITHOUT LOGIN WITH DEFAULT_SCHEMA = dbo;
GRANT CONNECT TO [$(UserName)];
END
When i execute this, I am getting below error.
Could not deploy package.
Error SQL72014: .Net SqlClient Data Provider: Msg 207, Level 16, State 1,Line 15 Invalid column name 'User Name'.
Error SQL72045: Script execution error. The executed script:
Hello World,
I'm new to SSIS and would like a little assistance getting started, if possible...
Here is what I want to do:
Check if file exist (C:DTS UpgradeFilexxx.txt) --->
Archive file (C:DTS UpgradeArchive) --->
Check if file has data (true or false)
AND/OR
If there are any good website that have good direction, let me know
Thanks in advance for your help!!!
I have what I thought would be a simple problem: my SQL call has a few NULLs that I want to replace with 0s. Wherever I wanted this to happen, I put in code like this:
[code]CASE colName WHEN NULL THEN 0 ELSE colName END as colName[/code]
And it doesn't work...the column is the same as it was before I put in the case statement.
What am I doing wrong? Any ideas?
Thanks a lot,
-Starwiz
All- Please assist: In this SELECT statement:
1 SELECT person_id, (last + ', ' + first + ' on ' + CASE f.address_1 WHEN NULL THEN 'none' ELSE f.address_1 END) as last_first_address
2 FROM person
3
4 LEFT JOIN family f
5 ON person.family_id = f.family_id
I'm finding that the compound column last_first_address returns <null> when f.address_1 is null, even though it seems like it should return the string "none" per my CASE statement. If f.address_1 is not NULL, then it the statement works as expected. Please advise as to how I can fix the statement so that "none" is returned as the final string in last_fist_address if f.address_1 is null.
Note: I tried removing the parens. No effect on result.
Thanks!
-Kurt
I'm getting the following error messages:
Incorrect syntax near the keyword 'in'.
Server: Msg 156, Level 15, State 1, Line 38
Incorrect syntax near the keyword 'group'.
/* create temp tables */
select distinct d_vst_id as 'DRW_ID'
,d_vst_instid as 'DRW_INSTID'
into temp_tb1
from dnr_vst_db_rec
where d_vst_instid = ''
and d_vst_dontyp = 'WB'
and d_vst_status = 'DN'
and d_vst_date between 20020301 and 20030228
order by d_vst_id
Select distinct
n_per_id as 'ID1'
,n_per_gender as 'GENDER'
,n_per_birth as 'BIRTH1'
,d_bty_abo + d_bty_rhesus as 'ABO1'
,n_adr_city as 'CITY1'
,n_adr_zip as 'ZIP1'
into temp_tb3
from temp_tb1 right outer join nat_per_db_rec
on DRW_ID = n_per_id
right outer join dnr_bty_db_rec
on DRW_ID = d_bty_id
right outer join nat_adr_db_rec
on DRW_ID = n_adr_id
where DRW_INSTID = ''
order by n_per_id
select distinct getdate()
,d_aaa_insthdg
, case (d_vst_btcdte - n_per_birth) / 10000
when in (14,15,16) the '14-16'
when in (17,18,19,20) then '17-20'
when in (21, 22,23,24,25) then '21-25'
when in (26,27,28,29,30) then '26-30'
when in (31,32,33,34,35) then '31-35'
when in (36,37,38,39,40) then '36-40'
when in (41,42,43,44,45) then '41-45'
when in (46,47,48,49,50) then '46-50'
when in (51,52,53,54,55) then '51-55'
when in (56,57,58,59,60) then '56-60'
when in (61,62,63,64,65) then '61-65'
when in (66,67,68,69,70) then '66-70'*/
else
71+
end as 'AGE'
,sum(case a.d_vst_dontyp when '1' then 1 else 0 end ) as 'DRAW1'
,sum(case a.d_vst_dontyp when 'xx' then 1 else 1 end ) as 'TOTAL'
from dnr_aaa_db_rec, dnr_dud_db_rec, temp_tb3, dnr_vst_db_rec a
where a.d_vst_instid = ''
and a.d_vst_instid = d_aaa_instid
and a.d_vst_id = ID1
and a.d_vst_instid = n_per_instid
and a.d_vst_id = n_per_id
and n_per_gender = 'M'
and a.d_vst_btcdte between 20020301 and 20030228
and a.d_vst_btcdte = (Select max(b.d_vst_btcdte)
from dnr_vst_db_rec b
where b.d_vst_instid = ''
and b.d_vst_status = 'DN'
and b.d_vst_dontyp = 'WB'
and b.d_vst_id = a.d_vst_id
and b.d_vst_btcdte between 20020301 and 20030228)
group by
d_aaa_insthdg
,case (d_vst_btcdte - n_per_birth) / 10000
when in (14,15,16) the '14-16'
when in (17,18,19,20) then '17-20'
when in (21, 22,23,24,25) then '21-25'
when in (26,27,28,29,30) then '26-30'
when in (31,32,33,34,35) then '31-35'
when in (36,37,38,39,40) then '36-40'
when in (41,42,43,44,45) then '41-45'
when in (46,47,48,49,50) then '46-50'
when in (51,52,53,54,55) then '51-55'
when in (56,57,58,59,60) then '56-60'
when in (61,62,63,64,65) then '61-65'
when in (66,67,68,69,70) then '66-70'*/
else
71+
end as
First of all, hello and good morning, my question is, you can check SQL syntax in SQL Server with secondary button mouse or "Check SQL" button in toolbar (Microsoft Management Console 1.2).
I´d like to know if there´s a way to use these Server tools from Visual Basic 6 SP6, something like APIs ...
If there´s no solution, can anybody give me an idea of how to check SQL syntax in VB.
The application wants the users to make their own SQL sentences, (they just can write whatever they want ?????)
default is tha constraint?
if i want to add default value to my column this is corect?
alter table tab1 alter column a add default 0
when I try to create this SP I get: "incorrect syntax near @MyResult"
I have tried INT and different variable names, but get same error.
CREATE PROCEDURE sp_IsValidLogon
@UserName varchar(16),
@Password varchar(16) ,
@MyResult varchar(3) OUTPUT
As
if exists(Select * From User_Table
Where UserName = @UserName
And
Password = @Password)
begin
@MyResult = 1
end
else
begin
INSERT INTO FailedLogons(UserName, Password)
values(@UserName, @Password)
declare @totalFails int
Select @totalFails = Count(*) From FailedLogons
Where UserName = @UserName
And dtFailed > GetDate()-1
if (@totalFails > 5)
UPDATE User_Table Set Active = 0
Where UserName = @UserName
@MyResult = 0
end
CREATE TABLE #XYZ(
NTUser varchar(20),
FullNTName varchar(50),
FirstName varchar(20),
MiddleName varchar(20),
LastName varchar(40),
Rolename varchar(30))
DECLARE @NAME AS varchar(1000)
DECLARE @ADDRESS AS varchar(1000)
Declare CUR_C Cursor
For
Select Rolename
From DCJ_SecurityRole
Open CUR_C
Fetch Next From CUR_C
into @NAME
While @@fetch_status =0
Begin
IF @NAME not in('All','PUBLIC')
Begin
SET @ADDRESS = 'cn='+'''' + @NAME +''''+',OU=Groups, OU=AJP,DC=XYZ,DC=com'
INSERT INTO #UserDetail
EXEC ('
SELECT SAMAccountName as NTUSER,name as FULLNTNAME,givenname as FIRSTNAME,
initials as MIDDLENAME,sn as LASTNAME,''' + @NAME + ''' as Rolename FROM OPENQUERY
(ADSI, ''SELECT sAMAccountName,name,givenname,initials,sn FROM
''''LDAP://DC=XYZ,DC=com''''
WHERE
MemberOf=''''' + @ADDRESS +''''' '')
')
END
Fetch Next From CUR_C
into @NAME
END
CLOSE CUR_C
DEALLOCATE CUR_C
When I executes this code I am getting some syntax error like
Msg 102, Level 15, State 1, Line 8
Incorrect syntax near 'DCJAppDev'.where APJPRD is one of the role,
Can anyone suggest what dynamic sql part has error??
declare @b nvarchar(1)
set @b = '1'
if(@b='1')
begin
select * into #example from example
select * from #example
drop table #example
end
else
begin
select * into #example from example
select * from #example
drop table #example
end
With syntax check, I always get "'#example already exist'"
But why? Just because of two "select into temp table" operation?
I am confused.
Thank you.
I am trying to write a SQL Server query that archives x-days old data from [Archive].[TestToDelete] to [Working].[TestToDelete]table. I want to check that if the records on ArchiveTable do not exist then insert then deleted...which will be converted to a proc later.. archives x-days old data from [Working].[TestToDelete] to [Archive].[TestToDelete] table */Here is the table definition, it is the same for both working and archive tables. There are indexes on: IpAddress, Logdate, Server, User and Sysdate (clustered).
CREATE TABLE [Archive].[TestToDelete]([Server] [varchar](16) NOT NULL,[Logdate] [datetime] NOT NULL,[IpAddress] [varchar](16) NOT NULL,[Login] [varchar](64) NULL,[User] [varchar](64) NULL,[Sysdate] [datetime] NULL,[Request] [text] NULL,[Status] [varchar](64) NULL,[Length] [varchar](128) NULL,[Referer] [varchar](1024) NULL,[Agent] [varchar](1024) NULL) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]/* the syntax, which will be converted to proc is: */SET NOCOUNT ON;DECLARE @Time DATETIME,@R INT,@ErrMessage NVARCHAR(1024)SET @R = 1/* set @Time to one day old data */SET @Time =
[code]....
Hi,
I have some sql and i expect a row back with some information even if there is nothing. What i want to happen is when it returns an empty row then give me a 0 so at least i get something back I am filling a dataset here and it isnt populating the fields when an empty row is returned.
SELECT 3 row_id,
'2003' year,
'Mar' period,
(SELECT count(*) FROM news WHERE news.id IN (
SELECT news.id
FROM news
WHERE news.announced_date >= '2003-03-01' AND ........
So ive tried variations of the below in a CASE statement WHEN NUll or WHEN 0 but i still get nothing back. I would like the information to return 3 2003 Mar 0 if its empty.
SELECT 3 row_id,
'2003' year,
'Mar' period,
(SELECT CASE count(*) WHEN NULL THEN 0 ELSE count(*) END FROM news WHERE news.id IN (
SELECT news.id
FROM news
WHERE news.announced_date >= '2003-03-01' AND ............
Can anyone help me please??
Hi,
I am a newbie to this site and hope someone can help....
I have a select statement which I would like to create an extra column and put an if statement in it.... Current syntax is:
if(TL_flag= '1', "yes") as [Trial Leave]
it is coming up with an error.... I can use Select case but I should not need to as this should work?
Any ideas?
When i do a select on my emplee table for rows with null idCompany i dont get any records
I then try to modify the table to not allow a null idCompany and i get this error message:
'Employee (aMgmt)' table
- Unable to modify table.
Cannot insert the value NULL into column 'idCompany', table 'D2.aMgmt.Tmp_Employee'; column does not allow nulls. INSERT fails.
The statement has been terminated.
This sux
Hi, I was hoping someone could confirm the following about thefollowing number 2 SQL query:1. This extracts the data required given that there is a recording tomatch the records2. This should, but im not convinced extract all the remaining recordsthat do not have a matched recording, but fulfil the rest of thecriteria. If not please help...3. As the two querys produce the same layout of tables if I did a UNIONALL, this should work shouldnt it?Query 1:------------SELECT ai.entry_date as CallTime,ai.agent_login as AgentsLogin,ai.campaign as MarketingCampaign,ai.agent_input2 as ProductsSold,ai.first_name as Cust_FirstName,ai.last_name as Cust_LastName,ai.agent_input1 as Cust_PersonalNumber,ai.street_address as Cust_AddressStreet,ai.city as Cust_AddressCity,ai.state as Cust_AddressState,ai.zip as Cust_AddressZIP,rec.file_name as AgreementRecordingFileFROM agent_input ai,leads l,recordings recWHERE ai.whole_phone_number = l.whole_phone_number ANDl.call_status = 1110 ANDl.last_call_date between #04/24/2006 12:00 AM# and #04/25/200611:59 PM# ANDrec.whole_phone_number = l.whole_phone_number ANDrec.last_name = l.last_name ANDrec.agent = ai.agent_login ANDrec.campaign = l.campaignORDER BY ai.agent_login, ai.entry_dateQuery 2.-------------SELECT ai.entry_date as CallTime,ai.agent_login as AgentsLogin,ai.campaign as MarketingCampaign,ai.agent_input2 as ProductsSold,ai.first_name as Cust_FirstName,ai.last_name as Cust_LastName,ai.agent_input1 as Cust_PersonalNumber,ai.street_address as Cust_AddressStreet,ai.city as Cust_AddressCity,ai.state as Cust_AddressState,ai.zip as Cust_AddressZIP,'' as AgreementRecordingFileFROM agent_input ai,leads l,recordings recWHERE ai.whole_phone_number = l.whole_phone_number ANDl.call_status = 1110 ANDl.last_call_date between #04/24/2006 12:00 AM# and #04/25/200611:59 PM# ANDcount(SELECT rec.*WHERE rec.whole_phone_number = l.whole_phone_number ANDrec.last_name = l.last_name ANDrec.agent = ai.agent_login ANDrec.campaign = l.campaign) < 1ORDER BY ai.agent_login, ai.entry_dateThanks in advance for any help, its greatly appreciated.David
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