Dynamic SQL - parametrized query - sql

Question

I use dynamic sql with parameters and have problem :)
In block of code it works, but when I call procedure I have error that I need to declare scalar variable #name_dummy
So:
DECLARE #START_TIME DATETIME = GETDATE()
DECLARE #TMP_NAMES TABLE (
SCHEMA_N VARCHAR(500),
TABLE_N VARCHAR(500),
CONDITION VARCHAR(MAX),
TARGETDB VARCHAR(500),
SOURCEDB VARCHAR(500),
COLUMN_LIST VARCHAR(MAX)
)
DECLARE #SCHEMA_N VARCHAR(500)
DECLARE #TABLE_N VARCHAR(500)
DECLARE #CONDITION VARCHAR(MAX)
DECLARE #COLUMN_LIST VARCHAR(MAX)
DECLARE #TARGETDB VARCHAR(500)
DECLARE #SOURCEDB VARCHAR(500)
INSERT INTO #TMP_NAMES
SELECT
o.SCHEMA_N
,o.TABLE_N
,o.Condition
,o.TargetDB
,o.SourceDB
,STUFF((SELECT
', ' + c.name
FROM sys.columns c
WHERE c.object_id = o.object_id
AND c.system_type_id <> 189 /* Pomijam timestamp*/
ORDER BY c.column_id
FOR XML PATH (''))
, 1, 1, '')
FROM Table_A o
ORDER BY 1,
2
SELECT
SCHEMA_N
,TABLE_N
,CONDITION
,TARGETDB
,SOURCEDB
,COLUMN_LIST
FROM #TMP_NAMES
DECLARE KUR CURSOR
FOR
SELECT
SCHEMA_N
,TABLE_N
,CONDITION
,TARGETDB
,SOURCEDB
,COLUMN_LIST
FROM #TMP_NAMES
OPEN KUR
FETCH NEXT
FROM KUR
INTO #SCHEMA_N,
#TABLE_N,
#CONDITION,
#TARGETDB,
#SOURCEDB,
#COLUMN_LIST
WHILE ##FETCH_STATUS = 0
BEGIN
DECLARE #TOP VARCHAR(100)
SET #TOP = ( SELECT CAST(Wartosc AS VARCHAR) FROM Table_B WHERE Id = 3 )
IF #TOP < 40000
SET #TOP = 40000
WHILE ( 1 = 1 )
BEGIN
DECLARE #CHECK BIT = 0
DECLARE #sqlCMD NVARCHAR(MAX) = 'SELECT TOP 1 #check_exists = 1 FROM '
+ #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' WHERE ' + #CONDITION
exec sp_executesql #sqlCMD, N'#check_exists bit OUTPUT, #START_TIME DATE', #check_exists = #CHECK OUTPUT, #START_TIME = #START_TIME;
SELECT #sqlCMD , #CHECK
END
END
FETCH NEXT
FROM KUR
INTO #SCHEMA_N,
#TABLE_N,
#CONDITION,
#TARGETDB,
#SOURCEDB,
#COLUMN_LIST
CLOSE KUR;
DEALLOCATE KUR
And when I execute this it's compiling and works ( returns values ) for example sql which I want to execute.
SELECT TOP 1 #check_exists = 1 FROM MSSF15_WarstwaPosrednia.KatalogZdarzen.MSSF_RaportZdarzenPLKB2CS2K WHERE StatusPrzetwarzania = 4 AND DataWpisu < DATEADD(MONTH, -3, #START_TIME)
Parameters work here ( #check_exists which is output and #START_TIME condition param ) , but when I execute this in procedure I'm getting error
Must declare the scalar variable "#START_TIME". 137
SP definition:
USE xxxx
/****** Object: StoredProcedure dbo.dummy Script Date: 06/09/2018 13:40:22 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE dbo.dummy
AS
BEGIN
/*
PRZENIESIENIE DANYCH
*/
DECLARE #START_TIME DATETIME = GETDATE()
DECLARE #TMP_NAMES TABLE (
SCHEMA_N VARCHAR(500),
TABLE_N VARCHAR(500),
CONDITION VARCHAR(MAX),
TARGETDB VARCHAR(500),
SOURCEDB VARCHAR(500),
COLUMN_LIST VARCHAR(MAX)
)
DECLARE #SCHEMA_N VARCHAR(500)
DECLARE #TABLE_N VARCHAR(500)
DECLARE #CONDITION VARCHAR(MAX)
DECLARE #COLUMN_LIST VARCHAR(MAX)
DECLARE #TARGETDB VARCHAR(500)
DECLARE #SOURCEDB VARCHAR(500)
INSERT INTO #TMP_NAMES
SELECT o.SCHEMA_N,
o.TABLE_N,
o.Condition,
o.TargetDB,
o.SourceDB,
STUFF((
SELECT ', ' + c.NAME
FROM sys.columns c
WHERE c.object_id = o.object_id
AND c.system_type_id <> 189 /* Pomijam timestamp*/
ORDER BY c.column_id
FOR XML PATH('')
), 1, 1, '')
FROM dbo.Table_A o
ORDER BY 1,
2
SELECT SCHEMA_N,
TABLE_N,
CONDITION,
TARGETDB,
SOURCEDB,
COLUMN_LIST
FROM #TMP_NAMES
DECLARE KUR CURSOR
FOR
SELECT SCHEMA_N,
TABLE_N,
CONDITION,
TARGETDB,
SOURCEDB,
COLUMN_LIST
FROM #TMP_NAMES
OPEN KUR
FETCH NEXT
FROM KUR
INTO #SCHEMA_N,
#TABLE_N,
#CONDITION,
#TARGETDB,
#SOURCEDB,
#COLUMN_LIST
WHILE ##FETCH_STATUS = 0
BEGIN
DECLARE #TOP VARCHAR(100)
SET #TOP = (
SELECT CAST(Wartosc AS VARCHAR)
FROM dbo.Table_B
WHERE Id = 3
)
IF #TOP < 40000
SET #TOP = 40000
WHILE (1 = 1)
BEGIN
BEGIN TRY
BEGIN TRANSACTION T_TEST
DECLARE #CHECK BIT = 0
DECLARE #START_TIME_P DATE = GETDATE()
DECLARE #sqlCMD NVARCHAR(MAX) = 'SELECT TOP 1 #check_exists = 1 FROM ' + #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' WHERE ' + #CONDITION
SELECT #CHECK,
#START_TIME_P,
#sqlCMD
EXEC sp_executesql #sqlCMD,
N'#check_exists bit OUTPUT, #START_TIME DATE',
#check_exists = #CHECK OUTPUT,
#START_TIME = #START_TIME_P;
IF OBJECT_ID('tempdb..#TMP_ID') IS NOT NULL
DROP TABLE #TMP_ID
CREATE TABLE #TMP_ID (Id INT)
EXEC (
'INSERT INTO #TMP_ID
SELECT TOP ' + #TOP + ' Id
FROM ' + #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' WHERE ' + #CONDITION
)
DECLARE #sqlCMD_Ins NVARCHAR(MAX)
SET #sqlCMD_Ins = 'INSERT INTO ' + #TARGETDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' '
SET #sqlCMD_Ins = #sqlCMD_Ins + 'SELECT ' + #COLUMN_LIST + ' FROM ' + #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' WHERE Id IN ( SELECT Id FROM #TMP_ID )'
IF #sqlCMD_Ins IS NULL
RAISERROR (
'Brak polecenia insert #sqlCMD_Ins',
16,
1
)
EXEC (#sqlCMD_Ins)
DECLARE #sqlCMD_Del NVARCHAR(MAX)
SET #sqlCMD_Del = 'DELETE FROM ' + #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' WHERE Id IN ( SELECT Id FROM #TMP_ID )'
IF #sqlCMD_Del IS NULL
RAISERROR (
'Brak polecenia insert #sqlCMD_Ins',
16,
1
)
EXEC (#sqlCMD_Del)
DROP TABLE #TMP_ID
COMMIT TRANSACTION T_TEST
END TRY
BEGIN CATCH
IF (##TRANCOUNT > 0)
BEGIN
ROLLBACK TRANSACTION T_TEST
PRINT 'Wycofanie zmian'
PRINT ERROR_MESSAGE() + ' ' + CAST(ERROR_NUMBER() AS VARCHAR(256))
END
END CATCH
IF #CHECK = 0
BREAK
END
EXEC ('SELECT ''' + #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ''' AS DB ,COUNT(1) AS ILOSC FROM ' + #SOURCEDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ' UNION ALL ' + 'SELECT ''' + #TARGETDB + '.' + #SCHEMA_N + '.' + #TABLE_N + ''' AS DB ,COUNT(1) AS ILOSC FROM ' + #TARGETDB + '.' + #SCHEMA_N + '.' + #TABLE_N)
FETCH NEXT
FROM KUR
INTO #SCHEMA_N,
#TABLE_N,
#CONDITION,
#TARGETDB,
#SOURCEDB,
#COLUMN_LIST
END
CLOSE KUR;
DEALLOCATE KUR;
DECLARE #END_TIME DATETIME = GETDATE()
SELECT 'Daty przetworzenia',
#START_TIME_P AS 'START',
#END_TIME AS 'END'
SELECT 'Czas (min)',
DATEDIFF(MINUTE, #START_TIME_P, #END_TIME)
END
Guys, maybe u have similar situation and can help.
Error msg
Wycofanie zmian
Must declare the scalar variable "#START_TIME". 137
Thanks

Answer 1

Instead of
exec sp_executesql #sqlCMD, N'#check_exists bit OUTPUT, #START_TIME DATE', #check_exists = #CHECK OUTPUT, #START_TIME = #START_TIME;
try
declare #date_in DATE = GETDATE()
exec sp_executesql #sqlCMD, N'#check_exists bit OUTPUT, #START_TIME DATE', #check_exists = #CHECK OUTPUT, #START_TIME = #date_in;