Tuesday, March 27, 2012

Bind Variable in CURSOR

SQL Server 2000 SP4 with AWE hotfix. Windows 2003 SP1.

I have a stored procedure which is not working the way I think it
should be.

I have a CURSOR which has a variable in the WHERE clause:

DECLARE get_tabs CURSOR local fast_forward FOR
SELECT distinct tablename, id, shcontig1dt, shcontig2dt
FROM db_ind
WHERE dbname = @.dbname
ORDER BY tablename

It won't return anything, even when I verify that @.dbname has a value
and if I run the query in Query Analyzer with the value, it returns
rows:

SELECT distinct tablename, id, shcontig1dt, shcontig2dt
FROM db_ind
WHERE dbname = 'Archive'
ORDER BY tablename

DB_Rpt_Fragmentation11575791622006-03-29 09:52:11.7772006-03-29
09:52:11.823
DtsAdtStdArchive_DataSourceType5175768822006-03-29
09:52:11.8702006-03-29 09:52:11.887
DtsADTstdArchiveNotUsed3575763122006-03-29 09:52:11.8872006-03-29
09:52:12.103

I've taken out most of the guts for simplicity, but here's what I've
got:

--CREATE TABLE dbo.db_ind
--(
--db_ind_tkintIDENTITY,
-- id int NULL,
-- tablename sysname NOT NULL,
-- indid int NULL,
-- indexname sysname NOT NULL,
-- shcontig1dt datetime NULL,
-- defragdt datetime NULL,
-- shcontig2dt datetime NULL,
-- reindexdt datetime NULL
--)

ALTER PROCEDURE IDR
(@.hours int
)
AS

--SET NOCOUNT ON
--SET ANSI_WARNINGS OFF

DECLARE @.tabname varchar(100),
@.indname varchar(100),
@.dbname varchar(50),
@.vsql varchar(1000),
@.v_hours varchar(4),
@.shcontig1dtdatetime,
@.shcontig2dtdatetime,
@.defragdtdatetime,
@.reindexdtdatetime,
@.idint,
@.indidint,
@.rundbcursorint,
@.runtabcursorint,
@.runindcursorint

DECLARE get_dbs CURSOR local fast_forward FOR
SELECT dbname
FROM db_jobs
WHERE idrdate < getdate() - 4
or idrdate is null
ORDER BY dbname

DECLARE get_tabs CURSOR local fast_forward FOR
SELECT distinct tablename, id, shcontig1dt, shcontig2dt
FROM db_ind
WHERE dbname = @.dbname
ORDER BY tablename

DECLARE get_inds CURSOR local fast_forward FOR
SELECT indid, indexname, defragdt, reindexdt
FROM db_ind
WHERE dbname = @.dbname
AND tablename = @.tabname
ORDER BY indexname

OPEN get_dbs
FETCH NEXT FROM get_dbs
INTO @.dbname

IF @.@.FETCH_STATUS = 0
SELECT @.rundbcursor = 1
ELSE
SELECT @.rundbcursor = 0

SELECT @.v_hours = CONVERT(varchar,@.hours)

--================================================== ================================================== =====
--================================================== ================================================== =====
--================================================== ================================================== =====

WHILE @.rundbcursor = 1
BEGIN -- db while

PRINT '============================='
PRINT @.dbname
PRINT '============================='

--================================================== ================================================== =====
--================================================== ================================================== =====

OPEN get_tabs

FETCH NEXT FROM get_tabs
INTO @.tabname, @.id, @.shcontig1dt, @.shcontig2dt

IF @.@.FETCH_STATUS = 0
BEGIN
PRINT 'table: ' + @.tabname
SELECT @.runtabcursor = 1
end
ELSE
BEGIN
PRINT 'not getting any tables! '-- <<<<< THIS IS WHERE IT HITS
SELECT @.runtabcursor = 0
end

WHILE @.runtabcursor = 1
BEGIN
PRINT @.dbname
PRINT @.tabname

--================================================== ================================================== =====

OPEN get_inds
FETCH NEXT FROM get_inds
INTO @.indid, @.indname, @.defragdt, @.reindexdt

IF @.@.FETCH_STATUS = 0
SELECT @.runindcursor = 1
ELSE
SELECT @.runindcursor = 0

WHILE @.runindcursor = 1
BEGIN
PRINT 'Index:' + @.dbname + '.' + @.tabname + '.' + @.indname

FETCH NEXT FROM get_inds
INTO @.indid, @.indname, @.defragdt, @.reindexdt

IF @.@.FETCH_STATUS = 0
SELECT @.runindcursor = 1
ELSE
SELECT @.runindcursor = 0

END-- 1st loop through indexes
CLOSE get_inds

--================================================== ================================================== =====

--==========
PRINT 'db.tab: ' + @.dbname + '.' + @.tabname

--==========

--================================================== ================================================== =====

OPEN get_inds
FETCH NEXT FROM get_inds
INTO @.indid, @.indname, @.defragdt, @.reindexdt

IF @.@.FETCH_STATUS = 0
SELECT @.runindcursor = 1
ELSE
SELECT @.runindcursor = 0

WHILE @.runindcursor = 1
BEGIN

PRINT 'dbname: ' + @.dbname
PRINT 'tabname: ' + @.tabname
PRINT 'indname: ' + @.indname

FETCH NEXT FROM get_inds
INTO @.indid, @.indname, @.defragdt, @.reindexdt

IF @.@.FETCH_STATUS = 0
SELECT @.runindcursor = 1
ELSE
SELECT @.runindcursor = 0

END -- 2nd loop through indexes
CLOSE get_inds

--================================================== ================================================== =====

FETCH NEXT FROM get_tabs
INTO @.tabname, @.id, @.shcontig1dt, @.shcontig2dt

IF @.@.FETCH_STATUS = 0
SELECT @.runtabcursor = 1
ELSE
SELECT @.runtabcursor = 0

END-- loop through tables
CLOSE get_tabs

--================================================== ================================================== =====
--================================================== ================================================== =====

PRINT 'Index Maintenence complete. Job report in
[DB_Rpt_Fragmentation]'
PRINT ''

FETCH NEXT FROM get_dbs
INTO @.dbname

IF @.@.FETCH_STATUS = 0
SELECT @.rundbcursor = 1
ELSE
SELECT @.rundbcursor = 0

END -- loop through databases
CLOSE get_dbs
deallocate get_dbs
deallocate get_tabs
deallocate get_inds

--================================================== ================================================== =====
--================================================== ================================================== =====
--================================================== ================================================== =====

GO

And this is what I'm getting:

=============================
Archive
=============================

(0 row(s) affected)

not getting any tables!
Index Maintenence complete. Job report in [DB_Rpt_Fragmentation]

..
..
..
etc.

Am I missing something obvious?

Thank you for any help you can provide!!One of my fellow emps got it - apparently the CURSOR needed to be
declare w/in the loop right before I opened it.

I moved the get_tabs and get_inds cursor declarations and all is well .
.. .sql

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