sql - Why does nchar variable work when the columns referenced are char? -


this question based on curiosity. trying solve following problem:

  1. my stored proc produces results within 1-2 seconds of running, no problems.
  2. when run proc through ssrs, page gets stuck on loading , never produces results. takes 30 seconds - 1 minute become unstuck , quit processing query.
  3. any table referencing/joining on variable has same data type, char(3).

below code:

alter proc [dbo].[inventory_pr_rpt_scanfile_invalidcolorsize]  (     @store char(3) )   --set statistics io on    /** test **/      --declare   @store char(3)     --set       @store = '180'   /** drop existing temp table **/       if object_id('tempdb..#temp_scanbaddata') not null     drop table #temp_scanbaddata      if object_id('tempdb..#temp_scandiscrepancy') not null     drop table #temp_scandiscrepancy      if object_id('tempdb..#temp_scanfinalreport') not null     drop table #temp_scanfinalreport           create table #temp_scanbaddata (scan_store char(3)                                       ,scan_sku char(45)                                       ,scan_qty int                                       ,errormessage varchar(255))      create table #temp_scanfinalreport(scan_store char(3)                                       ,scan_sku char(45)                                       ,scan_qty int                                       ,storeoh_qty int                                       ,errormessage varchar(255))         create table #temp_scandiscrepancy(scan_store char(3)                                       ,scan_sku char(45)                                       ,scan_qty int                                       ,storeoh_qty int                                       ,errormessage varchar(255))                               /** sku exist in our system? (valid color/size/style check) **/ insert #temp_scanbaddata (scan_store                                       ,scan_sku                                       ,scan_qty                                       ,errormessage)     select scan_store         ,scan_sku         ,scan_qty         ,'sku not exist.' errormessage                [lp].[dbo].[scan_file]     scan_sku not in (select itemid                            [product].[dbo].[mastersku])     , scan_store = @store    /** scanned sku exist in store on hand? **/     insert #temp_scandiscrepancy (scan_store                                       ,scan_sku                                       ,scan_qty                                       ,storeoh_qty                                       ,errormessage)         select aa.scan_store            ,aa.scan_sku           ,aa.scan_qty           ,'' storeoh_qty           ,'scanned sku missing in store oh.' errormessage     [lp].[dbo].[scan_file] aa     full outer join [product].[dbo].[currentonhand] bb             on aa.scan_sku = bb.itemid             , aa.scan_store = bb.store      bb.itemid null     , aa.scan_store = @store     , bb.store = @store   /** store oh sku's missed in scan? **/     insert #temp_scandiscrepancy (scan_store                                       ,scan_sku                                       ,scan_qty                                       ,storeoh_qty                                       ,errormessage)         select aa.store   'scan_store'           ,aa.itemid  'scan_sku'           ,aa.onhandu 'scan_qty'           ,'' storeoh_qty           ,'sku not scanned.' errormessage     [product].[dbo].[currentonhand] aa     left join [lp].[dbo].[scan_file] bb             on aa.itemid = bb.scan_sku             , aa.store = bb.scan_store      bb.scan_sku null     , aa.store = @store     , bb.scan_store = @store  /** qty differences between scanned , oh? **/     insert #temp_scandiscrepancy (scan_store                                       ,scan_sku                                       ,scan_qty                                       ,storeoh_qty                                       ,errormessage)         select aa.scan_store         ,aa.scan_sku         ,aa.scan_qty         ,bb.onhandu 'storeoh_qty'         ,'qty not match between scan , store oh.' errormessage     [lp].[dbo].[scan_file] aa     join [product].[dbo].[currentonhand] bb         on bb.itemid = aa.scan_sku         , aa.scan_store = bb.store             bb.store = @store     , bb.onhandu <> aa.scan_qty        , aa.scan_store = @store         insert #temp_scanfinalreport (scan_store       ,scan_sku       ,scan_qty       ,storeoh_qty       ,errormessage)           select scan_store            ,scan_sku            ,scan_qty            ,storeoh_qty            ,errormessage        #temp_scandiscrepancy          insert #temp_scanfinalreport (scan_store       ,scan_sku       ,scan_qty       ,storeoh_qty       ,errormessage)           select scan_store            ,scan_sku            ,scan_qty            ,'' storeoh_qty            ,errormessage        #temp_scanbaddata            select *       #temp_scanfinalreport

resolution: after trying varchar(3) , char(3), tried nchar(3), , worked!

my question is: why? if viewed each table referencing , saw column store char(3), , temp tables created char(3), why nchar(3) work?

i feel has how ssrs passes text variable stored proc...but still doesn't make sense me how can run stored proc on sql server variable set char, varchar, , nchar. why 3 work on sql server, nchar works variable through ssrs?

table information:

  1. [lp].[dbo].[scan_file]
    • scan_store char(3)
  2. [product].[dbo].[currentonhand]
    • store varchar(4)


Comments

Post a Comment

Popular posts from this blog

Email notification in google apps script -

https://support.google.com/docs/answer/91588?hl=en i have sheet the cells filled in data pulled via apps script, website. pull in exact same data, not. on old sheets version use able emails when data "changes" different value. new sheets, email when new data pasted cells, though exact same data......and, can't set @ ranges anymore, entire document. there easy way watch cells when data changes, , email myself? this looks lot you're trying do. for checking whether value has changed after edit, this gives necessary information it. hence, know whether new value same 1 or not. implementing "workaround" talked in second link, able compare , send email myself if value changed. initiate onedit trigger goes off onedit function uses these lines after checks in place have passed. var email = "xyz@whatever.com"; mailapp.sendemail(email, "triggermail", "a change has occurred in sheet"); note: sends "notification...
Read more

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

javascript - IE11 incompatibility with jQuery's 'readonly'? -

the code i'm running has no issues in firefox, or chrome. user typing 1 textbox, tabs next , can continue typing that. when run webpage on ie11, user tabs next textbox , can't type in. textbox has double-clicked before user can insert anything. i've googled , seems ie give problems when using older jquery (i.e. prefers 'prop' 'attr' ). in code below jquery's readonly keyword being used in way ie11 no longer recognise/accept? i assume issue readonly , removeclass('ignore') working expected. //when focus on textbox 1 $("#field1").focus(function() { //remove readonly property textbox 1 $('#field1').prop('readonly', false).removeclass('ignore'); //add readonly property other textboxes $('#field2, #field3, #field4') .prop('readonly', 'readonly').addclass('ignore').val(''); }); i'm using jquery 2.1.3 ...
Read more