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Table Variable In a table Valued function

I am getting an error when trying to get this table valued function up. I have an error when I try to modify it. It is

"Incorrect syntax near the keyword 'Declare'."

However when I use this outside of the function it all works great. So I was just wondering is there something I am missing or how should i be doing this. Thanks guys.

 ALTER FUNCTION [dbo].[XXX]( @i_contactkey int, 
                                                        @v_scope varchar(15), 
                                                        @i_entrykey int = null, 
                                                        @i_staffcontactkey int = null,
                                                        @d_startdate datetime,
                                                        @d_today datetime)
RETURNS TABLE
AS begin
Declare @temp as table
(contactkey int, contactkey1 int, rolekey1 int,contactkey2 int, rolekey2 int, relationshipid int) 
insert into @temp    (contactkey , contactkey1 , rolekey1 ,contactkey2 , rolekey2 , relationshipid ) 
select contactkey , contactkey1 , rolekey1 ,contactkey2 , rolekey2 , relationshipid  
from contact clcon 
        LEFT JOIN contactassociation ca on ca.contactkey2 = clcon.contactkey where  ca.rolekey1 in (4,5,6)
                    and ca.relationshipid = 181 
                    and ca.activeind = 1
                    and ca.associationkey = (select top 1 associationkey 
                                             from contactassociation 
                                             where contactkey2 = clcon.contactkey and activeind = 1
                                                and relationshipid = 181
                                                and rolekey1 in (4,5,6)
                                             order by begindate desc)



        SELECT 
             clcon.contactkey'ClientId', 
             clcon.Stat'ClientStatus', 
             ctacct.optiondesc'account',
             ctlvl.optiondesc'levelid',
            (clcon.lastname+', '+clcon.firstname)'ClientName',
             clcon.firstname'ClientFirstName', 
             clcon.lastname'ClientLastName',   
             clcon.addressline1'address1',
             clcon.addressline2'address2',
             clcon.city'city',
             dbo.getcnfgoption(81,clcon.stateid,'D')'state',
             clcon.zipcode'zipcode',
             clcon.mainphone'mainphone',
             cgcon.contactkey'cgkey',(cgcon.firstname+' '+cgcon.lastname)'CGName', 
             cgcon.firstname'CGFirstName', 
             cgcon.lastname'CGLastName', 
             cgcon.addressline1'cgaddressline1',
             cgcon.addressline2'cgaddressline2',
             cgcon.city'cgcity',
             dbo.getcnfgoption(81,cgcon.stateid,'D')'cgstate',
             cgcon.zipcode'cgzipcode',
             cgcon.mainphone'cgmainphone',  
             dbo.getClientAltCGKeys_JSON(clcon.contactkey,'J')'AltCGsJSON', 
             --dbo.getClientAltCGKeys(clcon.contactkey,'C')'AltCGNames', 
             --dbo.getClientAltCGKeys(clcon.contactkey,'L')'altcgnamekeyslast',
             --dbo.getClientAltCGKeys(clcon.contactkey,'A')'altcgkeysaddress',
             dbo.getClientEventCount(clcon.contactkey, 'M', @d_startdate, @d_today) 'MLOA',
             dbo.getClientEventCount(clcon.contactkey, 'N', @d_startdate, @d_today) 'NMLOA',
             dbo.getClientEventCount(clcon.contactkey, 'A', @d_startdate, @d_today) 'Alts',
             dbo.getClientEventCount(clcon.contactkey, 'S', @d_startdate, @d_today ) 'Suspension',
             dbo.getClientEventCountAnnual(clcon.contactkey, 'C') 'MissingNotes',           
            -- dbo.getContactVerificationStatus(clcon.contactkey, 'D')'clverification',
            -- dbo.getContactVerificationStatus(cgcon.contactkey, 'D')'cgverification',
             ed1.eventkey 'mdskey',
             dbo.getCnfgTableOption(54,ed1.eventstatusid,'D')'mdsstatus',
             ed1.ScheduledDate 'NextMDS',
             ed2.eventkey 'pockey',
             dbo.getCnfgTableOption(54,ed2.eventstatusid,'D')'pocstatus',
             ed2.ScheduledDate 'NextPoC',
             ed3.eventkey 'hvkey',
             dbo.getCnfgTableOption(54,ed3.eventstatusid,'D')'hvsstatus',
             ed3.ScheduledDate 'NextHV',
             ed4.eventkey 'medlistkey',
             dbo.getCnfgTableOption(54,ed4.eventstatusid,'D')'medstatus',
             ed4.ScheduledDate 'NextMedList',
             ed5.eventkey 'semikey',
             dbo.getCnfgTableOption(54,ed5.eventstatusid,'D')'semistatus',
             ed5.ScheduledDate 'NextSemi',          
             ed6.eventkey'placementkey',
             ed6.startdate'placementstart',
             ed6.enddate'placementend',
             [dbo].[getClientCMName](clcon.contactkey)'cmname',
             [dbo].[getClientRNName](clcon.contactkey)'rnname',
             [dbo].[getClientCMKey](clcon.contactkey)'cmkey',
             [dbo].[getClientRNKey](clcon.contactkey)'rnkey',
            alertcount=(SELECT COUNT(eventalertkey) FROM veventalert WHERE alerttype='Alert' AND clientkey=clcon.contactkey AND viewedind=0 AND contactkey=COALESCE(@i_staffcontactkey,@i_contactkey)),
            alertkey=(SELECT MAX(eventalertkey) FROM veventalert WHERE alerttype='Alert' AND clientkey=clcon.contactkey AND viewedind=0 AND contactkey=COALESCE(@i_staffcontactkey,@i_contactkey)),
            msgcount=(SELECT COUNT(eventalertkey) FROM veventalert WHERE alerttype='Message' AND clientkey=clcon.contactkey AND viewedind=0 AND cgkey=cgcon.contactkey),
            msgkey=(SELECT MAX(eventalertkey) FROM veventalert WHERE alerttype='Message' AND clientkey=clcon.contactkey AND viewedind=0 AND cgkey=cgcon.contactkey),
            clcp.birthdate
        FROM (select dbo.getcontactstatus(contactkey,'ts')'Stat',* from contact where dbo.getcontactstatus(contactkey,'ts') is not null ) clcon 
        INNER JOIN contactrole cr
            ON (clcon.contactkey = cr.contactkey)
        --Find caregiver contact info
        LEFT JOIN contactassociation ca on ca.contactkey2 = clcon.contactkey and ca.rolekey1 in (4,5,6)
                    and ca.relationshipid = 181 and ca.activeind = 1
                    and ca.associationkey = (select max(associationkey) 
                                             from contactassociation 
                                             where contactkey2 = clcon.contactkey and activeind = 1
                                                and relationshipid = 181
                                                and rolekey1 in (4,5,6))
        LEFT JOIN contact cgcon 
            ON cgcon.contactkey = ca.contactkey1 and cgcon.activeind = 1            
        LEFT JOIN contactbu cbu
            ON (clcon.contactkey = cbu.contactkey)
            /*Account/Lvl Information*/
        LEFT JOIN contactprofile clcp
            ON (clcon.contactkey=clcp.contactkey)
        LEFT JOIN cnfgtableoption  ctlvl
            ON (clcp.svclevelid = ctlvl.tableoptionkey)
        LEFT JOIN cnfgtableoption  ctacct
            ON (clcp.accountid = ctacct.tableoptionkey)

        LEFT JOIN eventdefinition ed1               /* MDS */
            ON (clcon.contactkey=ed1.contactkey AND ed1.eventkey=dbo.getContactEventByWftask(clcon.contactkey, 181, 'MINOPEN'))
        LEFT JOIN eventdefinition ed2               /* POC */
            ON (clcon.contactkey=ed2.contactkey AND ed2.eventkey=dbo.getContactEventByWftask(clcon.contactkey, 120, 'MINOPEN'))
        LEFT JOIN eventdefinition ed3               /* HV */
            ON (clcon.contactkey=ed3.contactkey AND ed3.eventkey=dbo.getContactEventByWftask(clcon.contactkey, 341, 'MINOPEN'))
        LEFT JOIN eventdefinition ed4               /* MED */
            ON (clcon.contactkey=ed4.contactkey AND ed4.eventkey=dbo.getContactEventByWftask(clcon.contactkey, 178, 'MINOPEN'))
        LEFT JOIN eventdefinition ed5               /* SEMI */
            ON (clcon.contactkey=ed5.contactkey AND ed5.eventkey=dbo.getContactEventByWftask(clcon.contactkey, 122, 'MINOPEN'))                     
        LEFT JOIN eventdefinition ed6           /* Placement */
            ON (clcon.contactkey=ed6.contactkey AND ed6.wftaskkey = 49
                    AND ed6.eventstatusid = 16
                    AND ed6.activeind = 1
                    AND ed6.enddate = (select MAX(enddate) from eventdefinition 
                                       where contactkey = clcon.contactkey and wftaskkey = 49
                                        and activeind = 1
                                        and eventstatusid = 16))

        WHERE
        --Contact info
        cr.rolekey = 8 
        AND cbu.entrykey = @i_entrykey
        --and dbo.getcontactstatus (clcon.contactkey,'TS') not in ('Closed','Discharged')
        and clcon.Stat not in ('Closed')
        and clcon.activeind=1
        -- filter by branch entrykey (if param exists)
        --order by clcon.lastname,clcon.firstname

When you're using multiple statements in a function and returning a table, ie a Table-Valued User-Defined Function , you need a certain syntax, something like:

CREATE FUNCTION dbo.MyFunction(@ID int)
RETURNS @Mytable TABLE 
(
    -- Columns returned by the function
    ID int PRIMARY KEY NOT NULL, 
    -- (Other columns as required)
)
AS
BEGIN

  --Various statements to populate @Mytable

  RETURN; -- Returns @Mytable
END

See Table-Valued User-Defined Functions for more information.

If you have a function that just has RETURNS TABLE with no definition of the table being returned, this is an Inline User-Defined Function .

Inline user-defined functions are a subset of user-defined functions that return a table data type. Inline functions can be used to achieve the functionality of parameterized views.

See Inline User-Defined Functions .

The syntax for this is like:

CREATE FUNCTION dbo.MyFunction(@ID int)
RETURNS TABLE 
AS
RETURN
(
  SELECT *
  FROM MyTable
  WHERE ID = @ID
);

Here you don't define the table being returned and the body of the function can only be one SELECT statement.

At the moment your code is somewhere between the two; you need to get this to work as the first option, ie the Table-Valued User-Defined Function ; start by defining the table being returned in the RETURNS clause and go from there.

You have invalid function declaration. When returning table you should specify variable name that will hold your table, so your header may look like:

ALTER FUNCTION [dbo].[XXX](.....)
RETURNS @temp TABLE (contactkey int, contactkey1 int, rolekey1 int,contactkey2 int, rolekey2 int, relationshipid int) 
AS 
begin
...

您需要在RETURNS语句中定义表的列。

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