To add a condition dynamically in PowerBuilder - sql-server

I'm new to Power Builder code. I need to add a condition to Join dynamically. Any help is appreciated. Thanks a lot
String szdSQL, psql, sznewsql
szdSQL = "Select A, B, C, D
FROM sy_staging
LEFT OUTER JOIN fd_M
ON sy_staging.id = fd_M.id
LEFT OUTER JOIN gl_M
ON sy_staging.id= gl_M.id AND sy_staging.version = gl_M.version
WHERE sy_staging.year = :lyear AND
sy_staging.location = :llocation "
psql = "Upper(fd_M.code3) = 'SMM' "
In my new query I want to add the condition present in this string variable (psql) in the join as below
sznewsql = " "Select A, B, C, D
FROM sy_staging
LEFT OUTER JOIN fd_M
ON sy_staging.id = fd_M.id AND Upper(fd_M.code3) = 'SMM'
LEFT OUTER JOIN gl_M
ON sy_staging.id= gl_M.id AND sy_staging.version = gl_M.version
WHERE sy_staging.year = :lyear AND
sy_staging.location = :llocation "

Hmmm... That's an interesting case - adding a parameter to the ON clause, not the WHERE clause.
I'd use a datawindow, for sure (because I always do), but I'm not sure you can do that in graphic mode. You might have to convert to syntax, and then just add the new parameter into the ON clause with the ":" syntax.
LEFT OUTER JOIN fd_M
ON sy_staging.id = fd_M.id AND Upper(fd_M.code3) = :newStringParm
LEFT OUTER JOIN gl_M
...
and then your PowerScript would be
dw_1.retrieve( lYear, lLocation, psql )
-Paul Horan-

If you're only going to have those two different SQLs, you could just create two separate datawindows and then dynamically swap out the one used in the datawindow control.

Related

Executing part of stored procedure based on condition

I am trying to load to a table based on load types - Full or Incremental that is being passed as parameter in stored procedure. I was able to try with substitution variable with one line of code previously, but the below code doesn't seem to work -
Stored procedure possible arguments:
LOAD_TYPE=FULL
LOAD_TYPE=INCR
var incr_condition = (load_type=='INCR')?"INNER JOIN temp_table"
with temp_table(
select data
from table a
where dt between 01-01-2019 and 09-09-2020
)
select *
from table b
${incr_condition} -- execute only if load_type=INCR
INNER JOIN TABLE C ON B.ID = C.ID
Is there any way to restrict the with clause to execute only if the load_type==INCR? Please advice.
I think the conditional operator (question mark) must have a false part in addition to the true part. Otherwise, it generates a syntax error when there's a semicolon ending the line. This example obviously doesn't run anything, but it will return the values assigned to the "out" variable, which would be run.
Since you're using a replacement variable ${incr_condition} be sure to use backticks to open and close your SQL string.
create or replace procedure foo(LOAD_TYP string)
returns string
language javascript
as
$$
var load_type = LOAD_TYP;
var incr_condition = (load_type === 'INCR') ? "INNER JOIN temp_table" : "";
var out = `
with temp_table(
select data
from table a
where dt between 01-01-2019 and 09-09-2020
)
select *
from table b
${incr_condition} -- execute only if load_type=INCR
INNER JOIN TABLE C ON B.ID = C.ID
`;
return out;
$$;
call foo('INCR'); --Adds the inner join
call foo('FULL'); --Does not add the inner join
I also recommend changing your comparison on strings from == to ===. For details on why, reference What is the correct way to check for string equality in JavaScript?.

T-SQL Left Join using "or" operator

I have the following query where I would like to pull in either or both on a match. There can be more than one ID or HIC for a member. So if the member ID = member ID then pull the max (loaddate) for the most current HIC Likewise if HIC = HIC pull in the member ID with the max (loaddate). I want to include the left join in case a match isn't found for either scenario.
Code:
SELECT
CH1.*
,AVM.MBR_ID
,AVM.HIC
,AVM.MBR_LST_NM
,AVM.MBR_FST_NM
,CAST(AVM.MBR_BIRTH_DT AS DATE) AS 'MBR_BIRTH_DT'
,AVM.LOADDATE
FROM
#CHECK1 CH1
LEFT JOIN
AVRIL.DBO.VW_MBR AVM ON (CH1.HICN = AVM.HIC OR CH1.MEMBER_ID = AVM.MBR_ID)
WHERE
CH1.HEALTH_PLAN = 'AVRIL'
AND AVM.LOADDATE=(SELECT MAX(LOADDATE) FROM AVRIL.DBO.VW_MBR)
Thanks,
Michael
When you use a field from the VW_MBR table in the where clause, it effectively turns the left join into an inner join. Put the condition in the join:
...
FROM #CHECK1 CH1
LEFT JOIN AVRIL.DBO.VW_MBR AVM ON (CH1.HICN = AVM.HIC OR CH1.MEMBER_ID = AVM.MBR_ID)
AND AVM.LOADDATE=(SELECT MAX(LOADDATE) FROM AVRIL.DBO.VW_MBR)
WHERE CH1.HEALTH_PLAN = 'AVRIL'
Here may be an alternative to the first proposed answer, I'm using a custom query as jointure in order to optimize it (I use only the max load dates instead of trying the jointure on every rows of the table).
SELECT CH1.*
,MAVM.MBR_ID
,MAVM.HIC
,MAVM.MAX_LOADDATE
FROM #CHECK1 CH1
LEFT JOIN (SELECT AVM.HIC
,AVM.MBR_ID
MAX(AVM.LOADDATE) AS [MAX_LOADDATE]
FROM AVRIL.DBO.VW_MBR AVM
GROUP BY AVM.HIC, AVM.MBR_ID) MAVM (MAVM.HIC = CH1.HICN
OR MAVM.MBR_ID = CH1.MEMBER_ID)
WHERE CH1.HEALTH_PLAN = 'AVRIL'
I simplified the query to focus on the changes in comparison with the other proposed query. You can still add an INNER JOIN clause to AVRIL.DBO.VM_MBR in order to get additional columns:
...
LEFT JOIN (...) MAVM ...
INNER JOIN AVRIL.DBO.VW_MBR AVM2 ON AVM2.HIC = MAVM.HIC
AND AVM2.MBR_ID = MAVM.MBR_ID
AND AVM2.LOADDATE = MAVM.MAX_LOADDATE
...
So you can use AVM2.xxx for the columns you want to use.
Hope this will help

Converting T-SQL Left Join Subqueries to MS-Access

I need help in converting this T-SQL query to MS ACCESS. The error that I'm getting is JOIN expression not supported.
Update:
I can't add:
DDA ON TT.[Description] = DDA.AccountTypeDesc AND
H.AccountNumber = DDA.AccountNumber
But
DDA ON TT.[Description] = DDA.AccountTypeDesc
works. Is there a way to add the second condition?
T-SQL Query:
SELECT
*
FROM
(
SELECT
[PesoAmount] = CASE WHEN FE.IsoCode IS NULL THEN
LTRIM(STR(DFCF.CurrencyAmount, 20, 2))
ELSE
LTRIM(STR(DFCF.CurrencyAmount * FE.PhpConversionRate, 20, 2))
END,
DFCF.TransactionNumber,
DFCF.AccountNumber,
DFCF.CountryCd,
DFCF.TransactionTypeCd,
DFCF.Time,
DFCF.Date,
DFCF.TransactionStatusCd,
DFCF.TransactionCurrencyCd,
DFCF.BranchNumber,
DFCF.RemitterExtPartyCd,
DFCF.BeneficiaryExtPartyCd,
DFCF.PostedDate,
DFCF.AssociateNumber,
DFCF.ExecutingPartyNumber,
DFCF.CurrencyAmount,
DFCF.CurrencyAmountInTxnCcy,
DFCF.CurrencyAmountInAccountCcy,
DFCF.SecondaryAccountKey,
DFCF.RelatedInd,
DFCF.ThirdPartyInd,
DFCF.TransactionDescription,
DFCF.SecurityName,
DFCF.DealNumber
FROM
dbo.DesFactCashFlow DFCF (NOLOCK) LEFT JOIN
dbo.ForeignExchange FE (NOLOCK) ON DFCF.TransactionCurrencyCd = FE.IsoCode
)
H LEFT JOIN
dbo.Ctr C (NOLOCK) ON H.PesoAmount = C.PesoAmountFaceValueSumInsured AND
H.AccountNumber = C.AccountNumber AND
H.TransactionTypeCd = C.TransactionType LEFT JOIN
dbo.TransactionType TT (NOLOCK) ON H.TransactionTypeCd = TT.Code LEFT JOIN
(
SELECT
[AccountNumber] = DDA2.AccountNumber,
[AccountTypeDesc] = DDA2.AccountTypeDesc,
[LineOfBusinessName] = MAX(DDA2.LineOfBusinessName),
[AccountCurrencyCode] = MAX(DDA2.AccountCurrencyCode),
[AccountCurrencyName] = MAX(DDA2.AccountCurrencyName),
[AccountRegistrationTypeDesc] = MAX(DDA2.AccountRegistrationTypeDesc),
[AccountRegistrationName] = MAX(DDA2.AccountRegistrationName),
[AccountName] = MAX(DDA2.AccountName),
[AlternateName] = MAX(DDA2.AlternateName),
[AccountOpenDate] = MAX(DDA2.AccountOpenDate),
[AccountCloseDate] = MAX(DDA2.AccountCloseDate),
[AccountStatusDesc] = MAX(DDA2.AccountStatusDesc),
[DormantInd] = MAX(DDA2.DormantInd),
[ProductLineName] = MAX(DDA2.ProductLineName),
[ProductCategoryName] = MAX(DDA2.ProductCategoryName),
[ProductTypeName] = MAX(DDA2.ProductTypeName),
[ProductName] = MAX(DDA2.ProductName),
[ProductNumber] = MAX(DDA2.ProductNumber),
[AccountTaxId] = MAX(DDA2.AccountTaxId),
[AccountTaxIdTypeCode] = MAX(DDA2.AccountTaxIdTypeCode),
[AccountTaxStateCode] = MAX(DDA2.AccountTaxStateCode),
[AccountPrimaryBranchName] = MAX(DDA2.AccountPrimaryBranchName),
[MailingAddress1] = MAX(DDA2.MailingAddress1),
[MailingAddress2] = MAX(DDA2.MailingAddress2),
[MailingCityName] = MAX(DDA2.MailingCityName),
[MailingStateCode] = MAX(DDA2.MailingStateCode),
[MailingStateName] = MAX(DDA2.MailingStateName),
[MailingPostalCode] = MAX(DDA2.MailingPostalCode),
[MailingCountryCode] = MAX(DDA2.MailingCountryCode),
[MailingCountryName] = MAX(DDA2.MailingCountryName),
[CurrencyBasedAccountInd] = MAX(DDA2.CurrencyBasedAccountInd),
[MaturityDate] = MAX(DDA2.MaturityDate),
[OriginalLoanAmount] = MAX(DDA2.OriginalLoanAmount),
[CollateralTypeDesc] = MAX(DDA2.CollateralTypeDesc),
[CollateralTypeCode] = MAX(DDA2.CollateralTypeCode),
[InsuredAmount] = MAX(DDA2.InsuredAmount),
[EmployeeInd] = MAX(DDA2.EmployeeInd)
FROM
dbo.DesDimAccount DDA2 (NOLOCK)
GROUP BY
DDA2.AccountNumber,
DDA2.AccountTypeDesc
)
DDA ON RTRIM(TT.[Description]) = RTRIM(DDA.AccountTypeDesc) AND
H.AccountNumber = DDA.AccountNumber
EDIT: I replaced the query with the AS keyword. I get the same error.
MS Access Query with Error:
SELECT
'H' AS [HeaderRecordIndicator],
'1' AS [SupervisingAgency],
'0' + I.InstitutionCode AS [InstitutionCode],
CONVERT(char(8), H.Date, 112) AS [ReportDate],
'CTR' AS [ReportType],
'21' AS [FormatCode],
'1' AS [SubmissionType]
FROM
(((
SELECT
IIF(ISNULL(FE.IsoCode), FORMAT(DFCF.CurrencyAmount, "##################.00"), FORMAT(DFCF.CurrencyAmount * FE.PhpConversionRate, "##################.00")) AS [PesoAmount],
DFCF.TransactionNumber,
DFCF.AccountNumber,
DFCF.CountryCd,
DFCF.TransactionTypeCd,
DFCF.Time,
DFCF.Date,
DFCF.TransactionStatusCd,
DFCF.TransactionCurrencyCd,
DFCF.BranchNumber,
DFCF.RemitterExtPartyCd,
DFCF.BeneficiaryExtPartyCd,
DFCF.PostedDate,
DFCF.AssociateNumber,
DFCF.ExecutingPartyNumber,
DFCF.CurrencyAmount,
DFCF.CurrencyAmountInTxnCcy,
DFCF.CurrencyAmountInAccountCcy,
DFCF.SecondaryAccountKey,
DFCF.RelatedInd,
DFCF.ThirdPartyInd,
DFCF.TransactionDescription,
DFCF.SecurityName,
DFCF.DealNumber
FROM
DesFactCashFlow DFCF LEFT JOIN
ForeignExchange FE ON DFCF.TransactionCurrencyCd = FE.IsoCode
) AS
H LEFT JOIN
Ctr C ON H.PesoAmount = C.PesoAmountFaceValueSumInsured AND
H.AccountNumber = C.AccountNumber AND
H.TransactionTypeCd = C.TransactionType) LEFT JOIN
TransactionType TT ON H.TransactionTypeCd = TT.Code) LEFT JOIN
(
SELECT
DDA2.AccountNumber AS [AccountNumber],
DDA2.AccountTypeDesc AS [AccountTypeDesc],
MAX(DDA2.LineOfBusinessName) AS [LineOfBusinessName],
MAX(DDA2.AccountCurrencyCode) AS [AccountCurrencyCode],
MAX(DDA2.AccountCurrencyName) AS [AccountCurrencyName],
MAX(DDA2.AccountRegistrationTypeDesc) AS [AccountRegistrationTypeDesc],
MAX(DDA2.AccountRegistrationName) AS [AccountRegistrationName],
MAX(DDA2.AccountName) AS [AccountName],
MAX(DDA2.AlternateName) AS [AlternateName],
MAX(DDA2.AccountOpenDate) AS [AccountOpenDate],
MAX(DDA2.AccountCloseDate) AS [AccountCloseDate],
MAX(DDA2.AccountStatusDesc) AS [AccountStatusDesc],
MAX(DDA2.DormantInd) AS [DormantInd],
MAX(DDA2.ProductLineName) AS [ProductLineName],
MAX(DDA2.ProductCategoryName) AS [ProductCategoryName],
MAX(DDA2.ProductTypeName) AS [ProductTypeName],
MAX(DDA2.ProductName) AS [ProductName],
MAX(DDA2.ProductNumber) AS [ProductNumber],
MAX(DDA2.AccountTaxId) AS [AccountTaxId],
MAX(DDA2.AccountTaxIdTypeCode) AS [AccountTaxIdTypeCode],
MAX(DDA2.AccountTaxStateCode) AS [AccountTaxStateCode],
MAX(DDA2.AccountPrimaryBranchName) AS [AccountPrimaryBranchName],
MAX(DDA2.MailingAddress1) AS [MailingAddress1],
MAX(DDA2.MailingAddress2) AS [MailingAddress2],
MAX(DDA2.MailingCityName) AS [MailingCityName],
MAX(DDA2.MailingStateCode) AS [MailingStateCode],
MAX(DDA2.MailingStateName) AS [MailingStateName],
MAX(DDA2.MailingPostalCode) AS [MailingPostalCode],
MAX(DDA2.MailingCountryCode) AS [MailingCountryCode],
MAX(DDA2.MailingCountryName) AS [MailingCountryName],
MAX(DDA2.CurrencyBasedAccountInd) AS [CurrencyBasedAccountInd],
MAX(DDA2.MaturityDate) AS [MaturityDate],
MAX(DDA2.OriginalLoanAmount) AS [OriginalLoanAmount],
MAX(DDA2.CollateralTypeDesc) AS [CollateralTypeDesc],
MAX(DDA2.CollateralTypeCode) AS [CollateralTypeCode],
MAX(DDA2.InsuredAmount) AS [InsuredAmount],
MAX(DDA2.EmployeeInd) AS [EmployeeInd]
FROM
DesDimAccount DDA2
GROUP BY
DDA2.AccountNumber,
DDA2.AccountTypeDesc
) AS
DDA ON RTRIM(TT.[Description]) = RTRIM(DDA.AccountTypeDesc) AND
H.AccountNumber = DDA.AccountNumber
Here is the simplified query with the same error:
SELECT
*
FROM
(((
SELECT
IIF(ISNULL(FE.IsoCode), FORMAT(DFCF.CurrencyAmount, "##################.00"), FORMAT(DFCF.CurrencyAmount * FE.PhpConversionRate, "##################.00")) AS [PesoAmount],
DFCF.TransactionNumber,
DFCF.TransactionCurrencyCd,
FROM
DesFactCashFlow DFCF LEFT JOIN
ForeignExchange FE ON DFCF.TransactionCurrencyCd = FE.IsoCode
) AS
H LEFT JOIN
Ctr C ON H.PesoAmount = C.PesoAmountFaceValueSumInsured AND
H.AccountNumber = C.AccountNumber AND
H.TransactionTypeCd = C.TransactionType) LEFT JOIN
TransactionType TT ON H.TransactionTypeCd = TT.Code) LEFT JOIN
(
SELECT
DDA2.AccountNumber AS [AccountNumber],
DDA2.AccountTypeDesc AS [AccountTypeDesc],
MAX(DDA2.LineOfBusinessName) AS [LineOfBusinessName],
FROM
DesDimAccount DDA2
GROUP BY
DDA2.AccountNumber,
DDA2.AccountTypeDesc
) AS
DDA ON RTRIM(TT.[Description]) = RTRIM(DDA.AccountTypeDesc) AND
H.AccountNumber = DDA.AccountNumber
Give up trying to convert the SQL text from your T-SQL query to Access SQL. Create a new Access query from scratch and use the T-SQL query only as a road map. Add your data sources and set up the joins. The query designer will guarantee you create the joins in the manner which keeps the db engine happy: addition and positioning of parentheses it requires for queries with more than one join; the rules which apply for LEFT JOINs; and so forth. Just let the designer handle those details for you.
The designer will choke in Design View due to the functions in this part of your last join:
RTRIM(TT.[Description]) = RTRIM(DDA.AccountTypeDesc)
So leave out the RTRIM() functions while you're setting up the joins in Design View. Don't worry that the query doesn't return the correct results. After you get joins which satisfy the db engine, switch to SQL View and add the RTRIM() functions back in.
After you get the joins set up correctly, then add in your field expressions to the SELECT list.
Also you may find it easier to manage your complex query by breaking out the subqueries as separate saved queries --- then reference those queries by name in the master query just as you would table sources.
The problem is with the penultimate line:
DDA ON RTRIM(TT.[Description]) = RTRIM(DDA.AccountTypeDesc) AND
The Design View of the Access query designer can't work with functions in the ON part of the clause. You must remove the RTRIM.
Access is parenthesis happy. Wrap each join expression in parentheses, the ON clauses themselves, and each pair of tables.
You can't use CONVERT, NOLOCK, or CASE.
Which version of MSAccess you are using in your system? I just tried in 2007 version and RTRIM is working.

Translating a QueryExpression into SQL: what's a Natural join?

I am trying to translate a QueryExpression that is in some existing code into a T-SQL select statement.
I've run across the following statement and I'm having trouble understanding what they mean by a Natural Join:
linkEntity1.JoinOperator = JoinOperator.Natural;
Would this be equivalent to an Inner Join in T-SQL? Googling has not been much help.
Here's the rest of the QueryExpression Code:
QueryExpression query = new QueryExpression();
query.EntityName = "showinfo";
ColumnSet columns = new ColumnSet();
columns.Attributes = new String[] { "company" };
query.ColumnSet = columns;
query.Criteria = new FilterExpression();
query.Criteria.FilterOperator = LogicalOperator.And;
ConditionExpression condition1 = new ConditionExpression();
condition1.AttributeName = "company";
condition1.Operator = ConditionOperator.NotNull;
query.Criteria.Conditions = new ConditionExpression[] { condition1 };
LinkEntity linkEntity1 = new LinkEntity();
linkEntity1.JoinOperator = JoinOperator.Natural;
linkEntity1.LinkFromEntityName = "show";
linkEntity1.LinkFromAttributeName = "showid";
linkEntity1.LinkToEntityName = "showintegration";
linkEntity1.LinkToAttributeName = "showcode";
linkEntity1.LinkCriteria = new FilterExpression();
linkEntity1.LinkCriteria.FilterOperator = LogicalOperator.And;
ConditionExpression condition2 = new ConditionExpression();
condition2.AttributeName = "showend";
condition2.Operator = ConditionOperator.Null;
linkEntity1.LinkCriteria.Conditions = new ConditionExpression[] { condition2 };
query.LinkEntities = new LinkEntity[] { linkEntity1 };
There is no equivalent in SQL Server of a natural join where table intersect is based on column names by the RDBMS.
I'm glad of that because it is at best ambiguous and at worst dangerous. JOINs should be explicit. Examples why:
having a InsertedBy column in both tables (quite common): should we have to prefix with the table name to remove ambiguity?
future DDL that add columns that change JOIN semantics
See
Natural join in SQL Server
SQL Server - lack of NATURAL JOIN / x JOIN y USING(field)
Edit:
It looks like natural join means "don't repeat the column in the output" (like USING in MySQL would do) according to the JoinOperator Enumeration.
If I understand this (debatable!) it's misleading. Especially when I read the "LeftOuter" narrative..
A natural join compares all columns in the two tables that have the same column names. It's equivalent to an inner join with the matching columns explicitly listed.
Yes - the natural join is inner join - so you can write:
select * from tab1, tab2 where tab1.col1 = tab2.col1
as
select * from tab1 inner join tab2 on tab1.col1 = tab2.col1

How to convert access query to sql server query string?

how to converse access query to sql server query string by programing?
example for access query string
SELECT dbo_VNMST.VISITDATE, dbo_VNTREAT.TREATMENTCODE, dbo_VNMST.HN, dbo_VNMST.VN, dbo_VNTREAT_1.TREATMENTCODE, Count(dbo_VNMST.HN) AS CountOfHN, dbo_PATIENT_NAME.SUFFIX, Mid([firstname],2) AS FIRSTNAME1, Mid([lastname],2) AS LASTNAME1, (FIRSTNAME1+' '+LASTNAME1) AS FULLNAME
FROM (((dbo_VNMST INNER JOIN dbo_VNTREAT ON (dbo_VNMST.VISITDATE = dbo_VNTREAT.VISITDATE) AND (dbo_VNMST.VN = dbo_VNTREAT.VN)) INNER JOIN dbo_VNPRES ON (dbo_VNMST.VISITDATE = dbo_VNPRES.VISITDATE) AND (dbo_VNMST.VN = dbo_VNPRES.VN)) INNER JOIN dbo_VNTREAT AS dbo_VNTREAT_1 ON (dbo_VNMST.VISITDATE = dbo_VNTREAT_1.VISITDATE) AND (dbo_VNMST.VN = dbo_VNTREAT_1.VN)) INNER JOIN dbo_PATIENT_NAME ON dbo_VNMST.HN = dbo_PATIENT_NAME.HN
GROUP BY dbo_VNMST.VISITDATE, dbo_VNTREAT.TREATMENTCODE, dbo_VNMST.HN, dbo_VNMST.VN, dbo_VNTREAT_1.TREATMENTCODE, dbo_PATIENT_NAME.SUFFIX, Mid([firstname],2), Mid([lastname],2)
HAVING (((dbo_VNMST.VISITDATE) Between #9/1/1466# And #9/14/1466#) AND ((dbo_VNTREAT.TREATMENTCODE)="3964") AND ((dbo_VNTREAT_1.TREATMENTCODE)="92H") AND ((dbo_PATIENT_NAME.SUFFIX)=0));
In addition to what Kane posted, you'll also need to replace the underscore ("_") between dbo and the table name with a period ("."), e.g.:
SELECT dbo_VNMST.VISITDATE
will become
SELECT dbo.VNMST.VISITDATE
You'll need to use the SUBSTRING function instead of the MID function, replace double quotes with a single quote and remove the hash (#) identifier for your BETWEEN statement.

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