Similar Questions

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  Windows XP mode

  I need to use the USB port, but are not available in Windows XP mode, how do they available?

  Thanks, I need an answer soon.

  Plug the USB device, click the USB menu

  Click Attach device.

  Please wait while this one is initialized.

• How can I use EXISTS and no SEPARATE in this query? DDL/DML (attached)

  Example queries SQL start - from the beginner to the professional by Clare Churcher(sorry about the long example script)
  
  
  I have 3 tables: Member, entry, tournament (scripts DDL/DML attached below).
  
  The members and tournament tables have no common column. Member.Membertype and Tournament.tourtype are different columns despite the similarity of its content
  
  
  

  Table 1. Member
   MEMBERID LASTNAME             FIRSTNAME            MEMBERTYPE         
  --------- -------------------- -------------------- --------------
        118 McKenzie             Melissa              Junior             
        138 Stone                Michael              Senior             
        153 Nolan                Brenda               Senior             
        176 Branch               Helen                Social             
        178 Beck                 Sarah                Social             
        228 Burton               Sandra               Junior             
        235 Cooper               William              Senior             
        239 Spence               Thomas               Senior             
        258 Olson                Barbara              Senior             
        286 Pollard              Robert               Junior             
        290 Sexton               Thomas               Senior             
        323 Wilcox               Daniel               Senior             
        331 Schmidt              Thomas               Senior             
        332 Bridges              Deborah              Senior             
        339 Young                Betty                Senior             
        414 Gilmore              Jane                 Junior             
        415 Taylor               William              Senior             
        461 Reed                 Robert               Senior             
        469 Willis               Carolyn              Junior             
        487 Kent                 Susan                Social
  
  20 rows selected.
        

  Table 2: Entry
    MEMBERID     TOURID       YEAR
  ---------- ---------- ----------
         118         24       2005
         228         24       2006
         228         25       2006
         228         36       2006
         235         38       2004
         235         38       2006
         235         40       2005
         235         40       2006
         239         25       2006
         239         40       2004
         258         24       2005
         258         38       2005
         286         24       2004
         286         24       2005
         286         24       2006
         415         24       2006
         415         25       2004
         415         36       2005
         415         36       2006
         415         38       2004
         415         38       2006
         415         40       2004
         415         40       2005
         415         40       2006
  
  24 rows selected.

  Table 3: Tournament
    TOURID TOURNAME             TOURTYPE
  -------- -------------------- --------------
        24 Leeston              Social
        25 Kaiapoi              Social
        36 WestCoast            Open
        38 Canterbury           Open
        40 Otago                Open

  My requirement:+.
  I need to find the names of all those who entered the tournament Open (tournament. Tourtype = open). So I wrote the following query
  

   select distinct m.memberid, m.lastname, m.firstname, t.tourtype
   from
   member m inner join entry e on (m.memberid=e.memberid)
   inner join tournament t on (e.tourid=t.tourid)
   and upper(t.tourtype)='OPEN'
   order by m.lastname;
   

  It gives me a correct result.

   MEMBERID LASTNAME   FIRSTNAME  TOURTYPE
  -------- ---------- ---------- ------------------
       228 Burton     Sandra     Open
       235 Cooper     William    Open
       258 Olson      Barbara    Open
       239 Spence     Thomas     Open
       415 Taylor     William    Open

  But it means I can write this SQL using operator EXISTS?
  
  
  
  The DDL and DML to tables and their data
  

  CREATE TABLE Type(
      Type VARCHAR2(20) Primary Key,
      Fee number)
  /
  
  CREATE TABLE Member(
      MemberID NUMBER Primary Key,
      LastName VARCHAR2(20),
      FirstName VARCHAR2(20),
      MemberType VARCHAR2(20) constraint fk1_member References type(type),
      Phone VARCHAR2(20), Handicap NUMBER, JoinDate DATE, Coach NUMBER, Team
      VARCHAR2(20), Gender VARCHAR2(1))
  /
  
  
  
  CREATE TABLE Tournament(
      TourID NUMBER Primary Key,
      TourName VARCHAR2(20),
      TourType VARCHAR2(20))
  /
  
  
  
  CREATE TABLE Entry(
      MemberID NUMBER constraint fk1_entry References Member(memberid),
      TourID NUMBER constraint fk2_entry References Tournament(tourid), Year
      NUMBER,
  constraint pk_entry Primary Key (MemberID, TourID, Year))
  /
  
  Insert into Type values ('Junior',150)
  /
  
  
  Insert into Type values ('Senior',300)
  /
  
  
  Insert into Type values ('Social',50)
  /
  
  
  Insert into Member values
  (118,'McKenzie','Melissa','Junior','963270',30,null,null,null,'F')
  /
   Insert
  into Member values
  (138,'Stone','Michael','Senior','983223',30,null,null,null,'M')
  /
   Insert
  into Member values
  (153,'Nolan','Brenda','Senior','442649',11,null,null,'TeamB','F')
  /
   Insert
  into Member values
  (176,'Branch','Helen','Social','589419',null,null,null,null,'F')
  /
   Insert
  into Member values
  (178,'Beck','Sarah','Social','226596',null,null,null,null,'F')
  /
   Insert
  into Member values
  (228,'Burton','Sandra','Junior','244493',26,null,null,null,'F')
  /
   Insert
  into Member values
  (235,'Cooper','William','Senior','722954',14,null,null,'TeamB','M')
  /
  Insert into Member values
  (239,'Spence','Thomas','Senior','697720',10,null,null,null,'M')
  /
   Insert
  into Member values
  (258,'Olson','Barbara','Senior','370186',16,null,null,null,'F')
  /
   Insert
  into Member values
  (286,'Pollard','Robert','Junior','617681',19,null,null,'TeamB','M')
  /
  Insert into Member values (290,'Sexton
  ','Thomas','Senior','268936',26,null,null,null,'M')
  /
   Insert into Member
  values (323,'Wilcox','Daniel','Senior','665393',3,null,null,'TeamA','M')
  /
  Insert into Member values
  (331,'Schmidt','Thomas','Senior','867492',25,null,null,null,'M')
  /
   Insert
  into Member values
  (332,'Bridges','Deborah','Senior','279087',12,null,null,null,'F')
  /
   Insert
  into Member values
  (339,'Young','Betty','Senior','507813',21,null,null,'TeamB','F')
  /
   Insert
  into Member values
  (414,'Gilmore','Jane','Junior','459558',5,null,null,'TeamA','F')
  /
   Insert
  into Member values
  (415,'Taylor','William','Senior','137353',7,null,null,'TeamA','M')
  /
   Insert
  into Member values
  (461,'Reed','Robert','Senior','994664',3,null,null,'TeamA','M')
  /
   Insert
  into Member values
  (469,'Willis','Carolyn','Junior','688378',29,null,null,null,'F')
  /
   Insert
  into Member values
  (487,'Kent','Susan','Social','707217',null,null,null,null,'F')
  /
  
  Insert into Tournament values (24,'Leeston','Social')
  /
  
  
  Insert into Tournament values (25,'Kaiapoi','Social')
  /
  
  
  Insert into Tournament values (36,'WestCoast','Open')
  /
  
  
  Insert into Tournament values (38,'Canterbury','Open')
  /
  
  
  Insert into Tournament values (40,'Otago','Open')
  /
  
  
  
  
  Insert into Entry values (118,24,2005)
  /
  
  
  Insert into Entry values (228,24,2006)
  /
  
  
  Insert into Entry values (228,25,2006)
  /
  
  
  Insert into Entry values (228,36,2006)
  /
  
  
  Insert into Entry values (235,38,2004)
  /
  
  
  Insert into Entry values (235,38,2006)
  /
  
  
  Insert into Entry values (235,40,2005)
  /
  
  
  Insert into Entry values (235,40,2006)
  /
  
  
  Insert into Entry values (239,25,2006)
  /
  
  
  Insert into Entry values (239,40,2004)
  /
  
  
  Insert into Entry values (258,24,2005)
  /
  
  
  Insert into Entry values (258,38,2005)
  /
  
  
  Insert into Entry values (286,24,2004)
  /
  
  
  Insert into Entry values (286,24,2005)
  /
  
  
  Insert into Entry values (286,24,2006)
  /
  
  
  Insert into Entry values (415,24,2006)
  /
  
  
  Insert into Entry values (415,25,2004)
  /
  
  
  Insert into Entry values (415,36,2005)
  /
  
  
  Insert into Entry values (415,36,2006)
  /
  
  
  Insert into Entry values (415,38,2004)
  /
  
  
  Insert into Entry values (415,38,2006)
  /
  
  
  Insert into Entry values (415,40,2004)
  /
  
  
  Insert into Entry values (415,40,2005)
  /
  
  
  Insert into Entry values (415,40,2006)
  /

  Hello, because you select tournament.tourtype in the SELECTION list, the answer is not really. If you have need of t.tourtype in the SELECT list, you might have:

  select m.memberid, m.lastname, m.firstname
  from member m
  where exists (select 1
          from entry e inner join tournament t on (e.tourid=t.tourid)
          where m.memberid=e.memberid
              and upper(t.tourtype)='OPEN');
  

  And you know that the t.tourtype is 'OPEN' anyway, if you do not need to SELECT. So, you may have it, and the answer is Yes:

  select m.memberid, m.lastname, m.firstname, 'OPEN' tourtype
  from member m
  where exists (select 1
          from entry e inner join tournament t on (e.tourid=t.tourid)
          where m.memberid=e.memberid
              and upper(t.tourtype)='OPEN');
  

  Published by: Seanmacgc on May 7, 2009 02:09

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  Hello, all,.

  I'm trying to write a VI according to my matlab file, now I m confused about 'fscanf' and 'fread ',.

  I used the VISA-reading slot - VI for the function 'fread' but who don't know for the "fscanf.

  and I don't know how to read the datamatrix with a Subvi.

  Is there someone can give me a tip, which will be very nice, thank you.

  your

  Adam

  Hello, everyone,

  I think that I found how to solve my problem. (The interface control series)

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  for example:

  fprintf = VISA / writing

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  When you still have any questions about this, feel free to ake, I'll try to answer you.

  Your

  Adam Yuan

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  jeffsure wrote:

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