Parameter Values
I am trying to display all the records with any status. When the user select 'AllLogs' from the dropdwon in report.
But when I run the report it is excluding the records with blank
status.
How can i pull the records with any status(blank,NULL,Approved,etc) ?
Label: Status
Value: %
I have also enabled NULL and Blank values in the parameter properties.
This is my where clause.
( ( l.Status LIKE '%' + #status + '%' ) OR
( l.Status LIKE #status ) OR
( LTRIM(RTRIM(l.Status))='') OR
( l.status IS NULL ) )
The most surefire way to include all records is to simply not filter in your where, which can be achieved with a short-circuiting case statement:
where case when #status = '%' -- This can be any value, such as 'All'
then 1
else case when l.Status = #status
then 1
else 0
end
end = 1
Whilst this is a little verbose, it has the added benefit of not actually running the comparison if your All option is selected, which will improve query performance.
Related
I'm trying to run a somewhat complex sql statement using the 'group_concat' function for statistics.
When I run the sql statement using navicat, the correct result is returned.But when I use mybatis debug this sql in idea, it returns null value.
I use HashMapHashMap<String,Long> to receive the result set executed by mybatis,
I guess the result set returned by mybatis executing sql is wrongly encapsulated.
But I tried for a long time and couldn't find a solution.
I can't post pictures here,I display the results in a table.
cha
hege
lianghao
youxiu
1
1
2
1
Receive declaration at the mapper layer
HashMap<String, Long> getOption(#Param("column") String column);
Here is the sql code:
<select id="getOption" resultType="java.util.HashMap">
SELECT GROUP_CONCAT(form.cha SEPARATOR '') cha,
GROUP_CONCAT(form.hege SEPARATOR '') hege,
GROUP_CONCAT(form.lianghao SEPARATOR '') lianghao,
GROUP_CONCAT(form.youxiu SEPARATOR '') youxiu
FROM (
SELECT
( CASE WHEN #{column} = '0' THEN count(*) ELSE NULL END) AS 'cha',
( CASE WHEN #{column} = '1' THEN count(*) ELSE NULL END ) AS 'hege',
( CASE WHEN #{column} = '2' THEN count(*) ELSE NULL END ) AS 'lianghao',
( CASE WHEN #{column} = '3' THEN count(*) ELSE NULL END ) AS 'youxiu'
FROM corp_feedback_student
GROUP BY #{column}
) form
</select>
Thanks everyone for helping me！！
I have several stored procedures that are almost identical but have some different AND parts inside a WHERE clause.
Based on a variable deptname, I want to add additional AND/OR conditions to my already existing WHERE clause. So kind of like IF/CASE WHEN on the part that is different.
Think about it as string concatenation
query_string = 'WHERE a= XYZ AND B= 123"
if deptname = a: query_string + "AND additional conditions for dept a"
else if deptname = b:query_string + "AND additional conditions for dept b"
What is the appropriate way to use a variable?
here is some pseudo code of what I am trying to do
SELECT
personID AS pid,
personcode,
persondeptcode,
more_fields AS fields
FROM
TABLE_XYZ
WHERE
--shared parts
personcode = 'C'
AND
persondeptcode = 'MAJ'
--- NOW the different part
IF #deptname = "deptA"
AND
(
PROGRAM_LDESCR IN
(
'prog1',
'prog2',
'prog3'
)
OR
aprogram IN ('aprogram1')
OR
(aprogram IN ('aprogram2') AND PLAN_LDESCR IN ('plan123'))
);
--- THIS IS A DIFFERENT DEPT SO WE HAVE DIFFERENT AND PART
ELSE IF #deptname = "deptB"
(
PROGRAM_LDESCR IN
(
'1234'
)
OR
aprogram IN ('a1234')
);
You can use a CASE expression in this case, the important thing is to make sure you have an ELSE clause to ensure the expression remains true if #deptname is not one of the two values with extra conditions:
WHERE personcode = 'C'
AND persondeptcode = 'MAJ'
AND (CASE #deptname
WHEN "deptA" THEN PROGRAM_LDESCR IN ('prog1', 'prog2', 'prog3')
OR aprogram IN ('aprogram1')
OR aprogram IN ('aprogram2') AND PLAN_LDESCR IN ('plan123')
WHEN "deptB" THEN PROGRAM_LDESCR IN ('1234')
OR aprogram IN ('a1234')
ELSE 1
END)
Here is a simple demo of a CASE expression used in this fashion.
You seem to want something like:
AND
(#deptname = 'dept123' AND (PROGRAM_LDESCR IN ('1234') OR aprogram IN ('a1234')) OR
#deptname <> 'dept123'
)
To combine the last part of the WHERE clause (if I'm understanding your commented-code correctly), you could do something like the following:
SELECT
personID AS pid,
personcode,
persondeptcode,
more_fields AS fields
FROM
TABLE_XYZ
WHERE
personcode = 'C'
AND persondeptcode = 'MAJ'
AND (
(#deptname="deptA" AND (PROGRAM_LDESCR IN ('prog1', 'prog2', 'prog3') OR aprogram IN ('aprogram1') OR (aprogram IN ('aprogram2') AND PLAN_LDESCR IN ('plan123'))))
OR
(#deptname="deptB" AND (PROGRAM_LDESCR IN ('1234') OR aprogram IN ('a1234'))
)
Normally you would use the WHERE clause to filter out unnecessary rows of data and a CASE statement if you wanted to actually change the value in the SELECT statement (I rarely see CASE statements outside a SELECT clause, unless it is doing something like a complex sort).
Take a look at the following query. How do you display Column 'Action' as text.
If the result of 'Action' is LEQ 0 then dipslay the text "Crash" and if 'Action'
is GRT 0 display the text "Hold"?
SELECT col1 AS Action
FROM vdk
WHERE t_stamp Between "{StartTime}" AND "{EndTime}"
Refactoring the answer above, since i don't see the necessity to add a query to an alias table. I think this should work the other answer should work too btw, but its a little more complicated query for no given reason.
SELECT (CASE WHEN col1 <= 0 THEN 'Crash' ELSE 'Hold' END) AS Action
FROM vdk
WHERE t_stamp Between "{StartTime}" AND "{EndTime}"
Use CASE WHEN ... ELSE ... END and select from your set (query):
SELECT *, (CASE WHEN Action <= 0 THEN 'Crash' ELSE 'Hold' END) as ActionText
FROM (
SELECT col1 AS Action
FROM vdk
WHERE t_stamp Between "{StartTime}" AND "{EndTime}"
) q
This application is similar to my first question and I thought it might help someone else down the the road.
User can select from a Table's Drop Down List a set of options to enter a value into the Database.
Using Ignition's Power Table Component's Extension Function configureEditor with the following script.
This script sets up the Drop Down List.
if colName == 'Action':
return {options': [(0, 'Null'), (1, 'HOLD'), (2, 'CRASH')]}
Along with the same Power Table's Extension Function onCellEdited script.
This script enters the selection as a value into the database.
#onCellEdited Upadte Query
row = rowIndex
col = colIndex
colName = colName
value = newValue
ndx = self.data.getValueAt(row,0)
query = "UPDATE vdk SET %s = ? WHERE ndx = ?" % colName
system.db.runPrepUpdate(query,[value,ndx],'history')
system.db.refresh(self.data)
I am trying to display a field value based on the value of field and then find a external table record.
can I do it?
SELECT
CASE
WHEN (dsp_notes IS NOT NULL) THEN '*'
WHEN (dsp_notes IS NULL) THEN ''
ELSE ''
END,
CASE
WHEN (dsp_priority = '1') THEN [SELECT uvi_value FROM PUB.universalinfo WHERE uvi_key = 'DSP01SHORT']
Is this possible?
Yes. This is called a scalar subquery and it needs to return one column and one row:
(CASE WHEN dsp_priority = '1'
THEN (SELECT ui.uvi_value FROM PUB.universalinfo ui WHERE ui.uvi_key = 'DSP01SHORT')
END) as NewCol
I strongly encourage you to use table aliases on your column references.
declare #SP nvarchar(3)
SELECT HDR.SOPNUMBE, HDR.docdate, HDR.pymtrmid,
RTRIM(HDR.ShipToName) +
CASE WHEN HDR.ADDRESS1 <> '' THEN char(10) + RTRIM(HDR.ADDRESS1) ELSE '' END
FROM vSOPHdr HDR
WHERE HDR.SOPTYPE = 2 AND
(CASE WHEN HDR.SLPRSNID <> 'All'
then HDR.SLPRSNID in (''+#SP+'')
else HDR.SLPRSNID between '0' and 'ZZZZZZZZZZZZZZZ'
end)
I am trying to run the above query in sql query analyzer but getting 'syntax' errors in the CASE expression (near IN, ELSE). What could be wrong?
All I want to do is when sales-personID is selected as ALL in the report parameter I would like to process all sales person else only the selected sales person ID.
Just a background about what I am doing,
I have a similar query to the above query (without the CASE condition) within a dataset for a SSRS report.
Note that #SP is a report parameter.
CASE is an expression that returns a single value. It cannot be used for control-of-flow logic, like in other languages such as VB. Try:
WHERE HDR.SOPTYPE = 2 AND
((HDR.SLPRSNID <> 'All' AND HDR.SLPRSNID = #SP)
OR
(HDR.SLPRSNID = 'All'))
Though it seems like maybe you need instead, which would make more logical sense if the user is potentially passing 'All' into the parameter:
WHERE HDR.SOPTYPE = 2 AND
((#SP <> 'All' AND HDR.SLPRSNID = #SP)
OR
(#SP = 'All'))
you can just use an OR clause
WHERE HDR.SOPTYPE = 2 AND
((HDR.SLPRSNID <> 'All' AND HDR.SLPRSNID IN (''+#SP+''))
OR
(HDR.SLPRSNID = 'All' AND HDR.SLPRSNID BETWEEN '0' and 'ZZZZZZZZZZ'))
Not sure if the BETWEEN '0' and 'ZZZZZZZZZZZ' means "IN everything". If yes, you can just remove it now.
If you absolutely wanna use a CASE WHEN, you can do it this way :
WHERE HDR.SOPTYPE =2
AND (CASE WHEN HDR.SLPRSNID <>'All' AND HRD.SLPRSNDID IN (''+#SP+'')) THEN 1
WHEN HDR.SLPRSNID = 'All' AND HDR.SLPRSNID BETWEEN '0' and 'ZZZZZZZZZZ' THEN 1
ELSE 0
END) = 1