Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

SQL SELECT multi-columns INTO multi-variable

Posted on 2014-02-25
11
Medium Priority
?
460 Views
Last Modified: 2014-03-12
right now try to input all variable from:

SELECT c.session_id as "session id", c.name, c.properties as "The cursor properties", c.creation_time as "Cursor creation time", c.is_open as "is the Cursor opened" , t.text as "The SQL Query"

FROM sys.dm_exec_cursors (54) c

CROSS APPLY sys.dm_exec_sql_text (c.sql_handle) t 

Open in new window


to varible I defined.

how can I fit it into many variable in one singal statement ?

 this:

SELECT @Cursor_SessionID = c.session_id, @Cursor_Name= c.name, @Cursor_Pro = c.properties,
@Cursor_CreationTime = c.creation_time, c.is_open as "is the Cursor opened" , 
@Cursor_query= t.text

FROM sys.dm_exec_cursors (@spid) c

CROSS APPLY sys.dm_exec_sql_text (c.sql_handle) t 

Open in new window


?

while @spid get from that:
DECLARE db_cursor CURSOR FOR 
SELECT spid, loginame, program_name, hostname as "From host", login_time, last_batch, DB_NAME(dbid) AS "Against database" , 
(SELECT text FROM sys.dm_exec_sql_text(sql_handle))as "Query executed" 
FROM master..sysprocesses WHERE loginame= 'ixapi' and open_tran > 0 and DATEDIFF (minute, login_time, GETDATE()) > 
@Total_time_Executed  ;

Open in new window

0
Comment
Question by:marrowyung
  • 8
  • 3
11 Comments
 
LVL 1

Author Comment

by:marrowyung
ID: 39885140
can I have more than one cursor inside a singal SP in MS SQL ?

why I need this? as this one:

SELECT @Cursor_SessionID = c.session_id, @Cursor_Name= c.name, @Cursor_Pro = c.properties,
@Cursor_CreationTime = c.creation_time, c.is_open as "is the Cursor opened" , 
@Cursor_query= t.text

FROM sys.dm_exec_cursors (@spid) c

CROSS APPLY sys.dm_exec_sql_text (c.sql_handle) t  

Open in new window


even the same session_id, can have more than one statement returned.

Or how can we loop out the result of this statment one by one and fit into our variable ?
0
 
LVL 60

Accepted Solution

by:
Kevin Cross earned 1500 total points
ID: 39885472
You could use a table variable (or user-defined data type) to store the combinations if I understand your need correctly.
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39885596
please give an example, I don't quite understand you.
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 60

Expert Comment

by:Kevin Cross
ID: 39886457
Here is an example with explanations:
/* Table variable to hold cursor information. */
DECLARE @cursors TABLE (
    sessionID INT,
    name NVARCHAR(128),
    properties NVARCHAR(128),
    creationTime DATETIME,
    isOpen BIT,
    querySQL NVARCHAR(MAX)
);

/* 
Query cursors dynamic management view, filling above table variable.
http://technet.microsoft.com/en-us/library/ms190346.aspx 
http://technet.microsoft.com/en-us/library/ms181929.aspx
*/
INSERT INTO @cursors(
    sessionID,
    name,
    properties,
    creationTime,
    isOpen,
    querySQL
)
SELECT c.session_id as "session id"
     , c.name
     , c.properties as "The cursor properties"
     , c.creation_time as "Cursor creation time"
     , c.is_open as "is the Cursor opened"
     , t.text as "The SQL Query"
FROM sys.dm_exec_cursors(0) c 
CROSS APPLY sys.dm_exec_sql_text (c.sql_handle) t 
;

/* Use table variable in later part of procedure. */
SELECT *
FROM @cursors
;

Open in new window


I hope that helps.

Regarding your question on multiple cursors, yes there can be more than one.  Here is Microsoft's example: http://msdn.microsoft.com/en-us/library/ms180169.aspx.
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39887893
today I found that my query:

SELECT c.session_id as "session id"
     , c.name
     , c.properties as "The cursor properties"
     , c.creation_time as "Cursor creation time"
     , c.is_open as "is the Cursor opened"
     , t.text as "The SQL Query"
FROM sys.dm_exec_cursors(0) c 
CROSS APPLY sys.dm_exec_sql_text (c.sql_handle) t 
;

Open in new window


only return on row, which is perfect ! But not all the time like that.

so the temp table @cursors will have more than one row, then how can handle it one by one?

so I need 2 x cursor for that, but this link http://msdn.microsoft.com/en-us/library/ms180169.aspx.  means i can do it !!

did you try this beofre? MySQL can't do this !! one SP can only have 1 x cursor .
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39888015
so can't do:


SELECT @A = c.session_id 
     , @B= c.name
     , @C= c.properties 
     , @D= c.creation_time
     , @E= c.is_open
     , @F= t.text 
FROM sys.dm_exec_cursors(0) c 
CROSS APPLY sys.dm_exec_sql_text (c.sql_handle) t 
;

Open in new window


in order to assign value when I do the select statment?
0
 
LVL 60

Expert Comment

by:Kevin Cross
ID: 39888570
Short answer, no.  You cannot do it that way.  You can concatenate values into variables, but I suspect you want the related individual values to use one at a time.  Therefore, you would do it like I showed with a table, then you could pull rows from the table one at time for further use.
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39891272
"Short answer, no."

I didn't test this one yet but I google that

"but I suspect you want the related individual values to use one at a time. "

I just want to ASSIGN the value of result to my variable directly from the query so tha t I can do some logic once after that .

"Therefore, you would do it like I showed with a table, then you could pull rows from the table one at time for further use. "

you query is this:

SELECT *
FROM @cursors
; 

Open in new window


what if there are more than one row ? how to loop the next one like what cursor do ?
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39911925
" Therefore, you would do it like I showed with a table, then you could pull rows from the table one at time for further use"

I think you are talking about:

/* Use table variable in later part of procedure. */
SELECT *
FROM @cursors
;

but by this can't insert any string in between to make the whole string meaning ful and can't make the lower level support understand what it is, as the result of it will only show rows of result and we can't add string to it and show the messag in the way we want, right ?
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39925506
then I prefer to have one more cursor which I just built one.,
0
 
LVL 1

Author Closing Comment

by:marrowyung
ID: 39925507
I use other method to build my solution !
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
Via a live example, show how to backup a database, simulate a failure backup the tail of the database transaction log and perform the restore.
Viewers will learn how to use the INSERT statement to insert data into their tables. It will also introduce the NULL statement, to show them what happens when no value is giving for any given column.

886 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question