Query on SQL UPDATE

Hi,
A small query regarding the SQL Update......
I have the below table values where I want to update two columns.....
EmpID EmpName Sal DocID DocSeqNum CreaDate
========================================
1 XYZ 25 289 1 12-MAY-2012
2 XYZ1 50 289 2 12-MAY-2012
3 XYZ2 55 NULL NULL 14-MAY-2012
4 XYZ3 60 NULL NULL 14-MAY-2012
5 XYZ4 65 NULL NULL 14-MAY-2012
6 XYZ5 70 NULL NULL 13-MAY-2012
I want to update the DocID with value 289 and DocSeqNum with a sequence i.e 3, 4, 5, 6 etc.....
Please advise.
THanks

Maybe just (for this particular case)
update the_table
   set docid = 289,
       docseqnum = empid
where coalesce(docid,docseqnum) is nullor
merge into the_table t
using (select empid,289 sal,row_number() over (order by empname) docid
         from the_table
      ) u
   on (t.empid = u.empid)
when matched
then update
        set t.sal = u.sal,
            t.docid = u.docid
      where coalesce(docid,docseqnum) is nullRegards
Etbin

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Contact me through twitter |
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1 THEN 'ON' ELSE 'OFF' END + ',' + CHAR(13) +
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<html>
<head>
<title>login information</title>
</head>
<body>
<h1>login information</h1>
<table border="1">
<tr>
<th>id</th>
<th>login</th>
<th colspan="2">password</th>
</tr>
<c:forEach var="round" items="${login.rows}" >
<tr>
<td>${round.id}</td>
<td>${round.login}</td>
<td colspan="2">${round.password}</td>
</tr>
</c:forEach><tr>
<form name="round-input" action="round_process.jsp" method="POST">
<td><input name="id" type="text" size="20" /></td>
<td><input name="login" type="text" size="20" /></td>
<td><input name="password" type="text" size="20" /></td>
<td><input type="submit" value="Update" /></td>
</form>
</tr>
</table>
</body>
</html>
it pass the parameter in round_process.jsp

<sql:query var="login" dataSource="jdbc:mysql://localhost/user,com.mysql.jdbc.Driver,user,parul">
SELECT * FROM login WHERE id=?
<sql:param value="${param.id}"/>
</sql:query>
<sql:update>
INSERT INTO login(id,login,password)VALUES(?,?,?)
<sql:param value="${param.id}"/>
<sql:param value="${param.login}"/>
<sql:param value="${param.password}"/>
</sql:update>
<c:redirect url="round-input.jsp"/>
when i execute the second .jsp page it will show an exception and error that is
javax.servlet.ServletException: Unable to get connection, DataSource invalid: "null"
     org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
     org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
     org.apache.jsp.round_005fprocess_jsp._jspService(round_005fprocess_jsp.java:87)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "null"
     org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport.getConnection(UpdateTagSupport.java:234)
     org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport.doStartTag(UpdateTagSupport.java:115)
     org.apache.jsp.round_005fprocess_jsp._jspx_meth_sql_update_0(round_005fprocess_jsp.java:168)
     org.apache.jsp.round_005fprocess_jsp._jspService(round_005fprocess_jsp.java:71)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

Your problem is that you need to have a
<sql:setDataSource
       var="myDataSource"
       dataSource="jdbc:mysql://localhost/user,com.mysql.jdbc.Driver,user,parul"
/>and your sql:query would now be
<sql:query var="login" dataSource="${myDataSource}">
SELECT * FROM login;
</sql:query>You can use whatever name you want for the var in the setDataSource as long as it matches the dataSource in the query.

Add members to collection from sql updatable report.

I have created a collection based on a query (collection_name = 'EMP_COLLECTION' query = select name, ssn, dept from emp.
The collection is created perfectly.
Now, I have a page with a SQL-updatable Report based off of the collection
(select * from htmldb_collection where collection_name = 'EMP_COLLECTION'. The collection rows appear, and I am able to press an ADD button to add a row. I fill in the data using the key DEPT which a pull from a field stored on the page.
How can I reference the other fields in the collection...#NAME#, #SSN# (as they are not items on the page).
Please let me know if you need clarification on this question as I realize I am a bit out of my league in describing it....but could really use a tip.
Karen

Karen,
I recently began working on collections, so here are a few code snippets that may help you:
Create Collection (placed in a Before Header Page Process)
apex_collection.create_or_truncate_collection
(p_collection_name => 'SOME_COLLECTION');
Initially populate a collection with default values (placed in a Before Header Page Process)
DECLARE
i number;
cntr number := 5; -- Sets number of default entries in collection
BEGIN
for i in 1..cntr loop
APEX_COLLECTION.ADD_MEMBER(
p_collection_name => 'SOME_COLLECTION',
p_c001 => 0, --Unique ID
p_c002 => :P10_ITEM_NM, -- Item Name
p_c003 => NULL, -- Description
p_c004 => sysdate, -- Date of Entry
end loop;
END;
each p_cXXX is a reference to a column in the collection.
View existing collection
SELECT SEQ_ID,
c001 ID,
c002 ITEM_NM,
c003 ITEM_DESC,
c004 ITEM_ENTRY_DATE,
from APEX_COLLECTIONS
where COLLECTION_NAME = 'SOME_COLLECTION'
You can also turn this into an editable collection by going into the report and individually changing the fields to text fields, dropdowns, etc.
To Update a collection (On Submit, After computations Page Process)
declare
c pls_integer := 0;
begin
for c1 in (
select seq_id from apex_collections
where collection_name = 'SOME_COLLECTION'
order by seq_id) loop
c := c+1;
--Item Name
apex_collection.update_member_attribute (p_collection_name=> 'SOME_COLLECTION',
p_seq=> c1.seq_id,p_attr_number =>2,p_attr_value=>wwv_flow.g_f01(c));
--Item Description
apex_collection.update_member_attribute (p_collection_name=> 'SOME_COLLECTION',
p_seq=> c1.seq_id,p_attr_number =>3,p_attr_value=>wwv_flow.g_f02(c));
--Item Entry Date
apex_collection.update_member_attribute (p_collection_name=> 'SOME_COLLECTION',
p_seq=> c1.seq_id,p_attr_number =>4,p_attr_value=>wwv_flow.g_f03(c));
end loop;
end;
In this example, the ID field is hidden to the users and populated using a sequence. The other fields are presented as text fields for Item Name and Item Description and a Date Picker for the Item Entry Date.
The key to understanding this is that the attribute number indicated by p_attr_number references the column in the COLLECTION containing the value you want to update/overwrite. The g_fXX tells which of the updatable columns in your report provide the values for the columns. Keep in mind that the number of updateable columns in your report is likely fewer than the total number of columns, so the numbering here starts from the first updatable column and goes down. If you rearrange the order of the columns in the display, it will not alter the field in the collection you reference (the attribute), but it WILL alter the g_fXX notation you use to get the value from.
Writing to the DB
declare
begin
for c1 in (select TO_NUMBER(c001) row_id, c002 itm_nm, c003 itm_desc,
to_date(c004,'DD/MM/YYYY') itm_dt from APEX_COLLECTIONS
where COLLECTION_NAME = 'SOME_COLLECTION') loop
insert into ITEMS (ITEM_ID, ITEM_NAME, ITEM_DESC, ITEM_DATE)
values (c1.row_id, c1.itm_nm, c1.itm_desc, c1.itm_dt);
end loop;
end;
Here, the trick is to reference the items using the [collection name].[attribute alias] syntax. This avoids the Oracle error "can't use a column".
If you want to reference items not on the page and put them into the collection, I recommend pre-populating them, since the user isn't going to be able to alter something they can't see anyway. I have used this successfully with both page items and application items.
Cheers.

TSQL - Dynamic Query Case statment update issue - to update table by left shifting the rows

Hi all
I need an help on my tsql query in 2000 to fix the case statement.
I have a table like shown below.
On this table where ever I see PortID as 101 and 105 I need to remove it and shift the rows from right to left.
ie on First row PortID1 is 101 so I need to remove it and replace it with PortId2 and similarly PortID2 replaced my PortID3 and so on.
ie like on excel if you delete cell we need to shift the rows to left .
I wrote an dynamic update statement i,m not sure on the assigning dynamic case statment.
CREATE TABLE [TravelRank]
[Destination] [varchar] (50) NULL,
[PortID1] [int] NULL ,
[Distance1] [int] NULL ,
[Rating1] [int] NULL ,
[PortID2] [int] NULL ,
[Distance2] [int] NULL ,
[Rating2] [int] NULL ,
[PortID3] [int] NULL ,
[Distance3] [int] NULL ,
[Rating3] [int] NULL ,
[PortID4] [int] NULL ,
[Distance4] [int] NULL ,
[Rating4] [int] NULL
INSERT into [TravelRank]
select 'Virgin Islands','101','10','5','102','20','5','103','31','5','109','41','5'
Union all
select 'Guinea','101','15','3','102','22','3','105','32','2','110','45','4'
Union all
select 'Benin ','102','12','4','106','28','4','104','33','3','109','48','2'
Union all
select 'Ecuador','102','18','5','101','29','5','108','34','1','111','45','5'
Union all
select 'Belarus ','103','17','4','105','24','4','108','45','4','112','46','3'
Union all
select 'Cook Islands','105','11','2','108','23','2','101','32','2','107','42','4'
Here is my code to fix
declare @SQL varchar(4000)
declare @left varchar(1)
declare @right varchar(1)
select @left = '1',@right = '2'
while @left < 4
begin
select @SQL = '
update t1.PortID' + @left + ' = t2.PortID' + @right + '
t1.Distance' + @left + ' = t2.Distance' + @right + '
t1.Rating' + @left + ' = t2.Rating' + @right + '
'case @left
when '1' then
' t1.PortID' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.PortID' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.PortID' + cast(cast(@left as int)+3 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+3 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+3 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+3 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+3 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+3 as varchar(1)) +'
' when '2' then
' t1.PortID' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.PortID' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+2 as varchar(1)) +'
' when '3' then
' t1.PortID' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+1 as varchar(1)) +'
' when '3' then
' t1.PortID' + @left + ' = null '
t1.Distance' + @left + ' = null '
t1.Rating' + @left + ' = null '
else '' end'
from [TravelRank] t1
inner join [TravelRank] t2
on t1.destination = t2.destination
where t1.PortID1 = 101'
print @SQL
-- exec (@SQL)
select @left = cast(cast(@left as int) + 1 as varchar(1))
, @right = cast(cast(@right as int) + 1 as varchar(1))
end
Thanks a lot in advance.

declare @SQL varchar(4000)
declare @left varchar(1)
declare @right varchar(1)
select @left = '1',@right = '2'
while @left < 4
begin
select @SQL = '
update t1.PortID' + @left + ' = t2.PortID' + @right + '
t1.Distance' + @left + ' = t2.Distance' + @right + '
t1.Rating' + @left + ' = t2.Rating' + @right + '
'+CASE @left
when '1' then
' t1.PortID' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.PortID' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.PortID' + cast(cast(@left as int)+3 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+3 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+3 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+3 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+3 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+3 as varchar(1)) +'
' when '2' then
' t1.PortID' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.PortID' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+2 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+2 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+2 as varchar(1)) +'
' when '3' then
' t1.PortID' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.PortID' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Distance' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Distance' + cast(cast(@right as int)+1 as varchar(1)) +'
t1.Rating' + cast(cast(@left as int)+1 as varchar(1)) + ' = t2.Rating' + cast(cast(@right as int)+1 as varchar(1)) +'
' when '3' then
' t1.PortID' + @left + ' = null '+
' t1.Distance' + @left + ' = null '+
' t1.Rating' + @left + ' = null '
else '' END + '
from [TravelRank] t1
inner join [TravelRank] t2
on t1.destination = t2.destination
where t1.PortID1 = 101'
print @SQL
-- exec (@SQL)
select @left = cast(cast(@left as int) + 1 as varchar(1))
, @right = cast(cast(@right as int) + 1 as varchar(1))
end
You were missing a couple of concats. This runs now, but I'm not completely sure if it's the output you were expecting.

SQL Update to split 1 column into 2

I have a column in a table that holds both a city and a zip ex. Jackson 44319
I am trying to write an sql update query so that the 2 pieces of info would be split and funneled into their own respective column. For example:
Before
column name: address
Jackson 44319
After
column name:city column name: zip
Jackson 44319
Here is what I have come up with so far, but it does not work correctly.
Update Table
Set city=Parsename(Replace(address ,',','.'),2),
zip=Parsename(Replace(address ,',','.'),1)
this query basically copies all my info from the address table and puts it into the zip table, and the city table remains null. yet, nothing gets split.

Does your db have a bulk loading utility? Do you have access to text manipulation tools such as awk?
If so, using them is probably a better idea than using ColdFusion.

Aspect logging - ie, trigger logging of sql:update

Is it possible to...somehow attach an aspect to a JSTL action?
In other words,
like, for every
</sql:update> tag, could I somehow trigger some code to log the query that was executed?
I would love to add logging to all non SELECT statements to my app, and if there is an easy way to ... say, wrap the SQL tld, that would be great!

Can Log4j do this?
http://logging.apache.org/log4j/docs/index.html

AXL execute SQL update

Is there a way to fire off an update query like:
Update devices set description = 'A' where description = 'B'
I get a "no update permission" error.
Yes, this a bad idea for many reasons, but I'm not willing to let that stop me, at least in this lab/test scenario...

Thanks for the response Stephan and s. Sorry - the original post had a typo. I was using the proper table name.
I didn't realize that there was a command line option. I've been avoiding the command line because I don't know too much about it. The command line option worked:
admin:run sql update device set description= "Test" where name="SEP000000032081"
Rows: 1
admin:
Of course this morning, I get something totally different from AXL (but these are the actual reuest and response envelopes):
sent:
http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
update device set description= 'Test' where name='SEP001BD458B533'
received:
http://schemas.xmlsoap.org/soap/envelope/"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
SOAP-ENV:Client
Method only for queries
http://www.cisco.com/AXL/API/1.0">
-79750
Method only for queries
executeSQLQuery

SQL query (pl/sql function body returning query) performance issue

I create my report in building my sql instruction with ( SQL Query pl/sql function body returning sql query );
My report take more than 20 seconds however if i did a cut and paste with the sql code in TOAD the same sql take 1 second.
To try to discover the source of the problem; i take the sql generated by the function and i create another report ( sql query ) this new report take 2 seconds.
My query is very big 25,000 characters with database link.
What is the difference between SQL-quey and sql-query(pl/sql function body returning sql query)
Thanks
Marc

Marc,
Firstly...don't compare the timings from Toad, since often Toad only fetches the first few records for you (i.e. it pages them).
Secondly....the database link could be a factor here, but without seeing your query it's too hard to say.
Can you post the query somewhere (on a webserver say)?

Different output of same query in SQL Server and Oracle

I have two tables table1 and table2
--table1 has two columns c1 int and c2 varchar. there are not constraints added in it. it has data as given below
c1     c2
6     d
5     j
102     g
4     g
103     f
3     h
501     j
1     g
601     n
2     m
--table2 has only one column c1 int. there are not constraints added in it. it has data as given below
c1
6
1
4
3
2
now when i run below given query in sql server and oracle it gives me different result
select *
from table1
     inner join (SELECT ROW_NUMBER() OVER (order by c1 ASC) AS c1 from table2) table2 on table2.c1=table1.c1
sql server output
c1     c2     c1
1     g     1
2     m     2
3     h     3
4     g     4
5     j     5
oracle output
C1 C2 C1
5 j 5
4 g 4
3 h 3
1 g 1
2 m 2
If you notice the first column in both output. It is sorted in sql server and not in oracle.
Why it is behaving differently in oracle? Is there any way I can solve this in oracle?
Thanks,
Jigs

It is NOT behaving "differently" in Oracle; you just haven't specified an order that you expect your results to be in, so you're going to get output in whatever order the database fancies displaying it (ie. no guarenteed order). This is an artifact of how the database chooses to put together the data, and different databases (or even datasets within the same database) can and most likely will behave differently.
Even SQL Server won't guarentee to always get your data in an ordered fashion if you exclude the order by clause, even if you think it has always output the data in an ordered fashion.
Your solution is to add an order by clause, in BOTH databases, to force the order of the output data.

Query on SQL UPDATE

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