I'm trying to update sum columns data like this:
update
tableName
set
score = myFunction(tableName.id)
In other hands I want to have a table like this:
column1 | column2
------------------------------
id1 | myFunction(id1)
id2 | myFunction(id2)
id3 | myFunction(id3)
id4 | myFunction(id4)
I defined myFunction as a scalar-valued functions. I also tried it as a table-valued function
but I see this error in SQL Server 2012:
Msg 195, Level 15, State 10, Line 14
'myFunction' is not a recognized built-in function name.
Please help me
Try using the full name of the function, including the database and schema name:
update
tableName
set
score = <database>.<schema>.myFunction(tableName.id)
I think only the schema name is needed, but I've gotten in the habit of putting both.
The documentation explains that at least the two part name is needed. If you don't know what schema are, then the following will probably work:
update
tableName
set
score = dbo.myFunction(tableName.id)
Related
I have a data table which has a column as Acctno what is expected shows in separate column
|Acctno | expected_output|
|ABC:BKS:1023049101 | 1023049101 |
|ABC:UWR:19048234582 | 19048234582 |
|ABC:UEW:1039481843 | 1039481843 |
I know in Oracle SQL which I used the below
select regexp_substr(acctno,'[^:]',1,3) as expected_output
from temp_mytable
but in Microsoft SQL Server I am getting an error that regexp_substr is not a built in function
How can I resolve this issue?
We can use PATINDEX with SUBSTRING here:
SELECT SUBSTRING(acctno, PATINDEX('%:[0-9]%', acctno) + 1, LEN(acctno)) AS expected_output
FROM temp_mytable;
Demo
Note that this answer assumes that the third component would always start with a digit, and that the first two components would not have any digits. If this were not true, then we would have to do more work.
Just another option if the desired value is the last portion of the string and there are not more than 4 segments.
Select *
,NewValue = parsename(replace(Acctno,':','.'),1)
from YourTable
Given the XML:
<Dial>
<DialID>
24521
</DialID>
<DialName>
Base Price
</DialName>
</Dial>
<Dial>
<DialID>
24528
</DialID>
<DialName>
Rush Options
</DialName>
<DialValue>
1.5
</DialValue>
</Dial>
<Dial>
<DialID>
24530
</DialID>
<DialName>
Bill Rush Charges
</DialName>
<DialValue>
School
</DialValue>
</Dial>
I can use the contains() function in my xpath:
//Dial[DialName[contains(text(), 'Bill')]]/DialValue
To retrieve the values I'm after:
School
The above XML is stored in a field in my SQL database so I'm using the .value method to select from that field.
SELECT Dials.DialDetail.value('(//Dial[DialName[contains(text(), "Bill")]]/DialValue)[1]','VARCHAR(64)') AS BillTo
FROM CampaignDials Dials
I can't seem to get the syntax right though... the xpath works as expected (tested in Oxygen and elsewhere) but when I use it in the XQuery argument of the .value() method, I get an error:
Started executing query at Line 1
Msg 2389, Level 16, State 1, Line 36
XQuery [Dials.DialDetail.value()]: 'contains()' requires a singleton (or empty sequence), found operand of type 'xdt:untypedAtomic *'
Total execution time: 00:00:00.004
I've tried different variations of single and double quotes with no effect. The error refers to an XPath data type for attributes, but I'm not retrieving an attribute; I'm getting the text value. I receive the same error if I type the response with //Dial[DialName[contains(text(), 'Bill')]]/DialValue/text() instead.
What is the correct way to use contains() in an XQuery when it's used in the XML.value() method? Or is this the wrong approach to begin with?
You nearly have it right, you just need [1] on the text() function to guarantee a single value.
You should also use text() on the actual node you are pulling out, for performance reasons.
Also, // can be inefficient, so only use it if you really need recursive descent. You can instead use /*/ to get the first node of any name.
SELECT
Dials.DialDetail.value(
'(//Dial[DialName[contains(text()[1], "Bill")]]/DialValue/text())[1]',
'VARCHAR(64)') AS BillTo
FROM CampaignDials Dials
As Yitzhak Kabinsky notes, this only gets you one value per row of the table, you need .nodes if you want to shred the XML itself into rows.
The difference between your actual database case that fails and your reduced sample case that works is likely one of different data.
The error,
contains() requires a singleton (or empty sequence)
indicates that one of your DialName elements has multiple text node children rather than a single text node child as you're expecting.
You can abstract away such variations by testing the string-value of DialName rather than its text node children:
//Dial[contains(DialName, 'Bill')]/DialValue
See also
Testing text() nodes vs string values in XPath
Here is how to do XML shredding in MS SQL Server correctly.
You need to apply filter in the XQuery .nodes() method.
The .value() method is just for the actual value retrieval.
It is possible to pass SQL Server variable as a parameter instead of the hard-coding "Bill" value.
SQL
-- DDL and sample data population, start
DECLARE #tbl TABLE (ID INT IDENTITY PRIMARY KEY, DialDetail XML);
INSERT INTO #tbl (DialDetail) VALUES
(N'<Dial>
<DialID>24521</DialID>
<DialName>Base Price</DialName>
</Dial>
<Dial>
<DialID>24528</DialID>
<DialName>Rush Options</DialName>
<DialValue>1.5</DialValue>
</Dial>
<Dial>
<DialID>24530</DialID>
<DialName>Bill Rush Charges</DialName>
<DialValue>School</DialValue>
</Dial>');
-- DDL and sample data population, end
SELECT ID
, c.value('(DialID/text())[1]', 'INT') AS DialID
, c.value('(DialName/text())[1]', 'VARCHAR(30)') AS DialName
, c.value('(DialValue/text())[1]', 'VARCHAR(30)') AS DialValue
FROM #tbl CROSS APPLY DialDetail.nodes('/Dial[contains((DialName/text())[1], "Bill")]') AS t(c);
Output
+----+--------+-------------------+-----------+
| ID | DialID | DialName | DialValue |
+----+--------+-------------------+-----------+
| 1 | 24530 | Bill Rush Charges | School |
+----+--------+-------------------+-----------+
I have an SSRS report that was pointed to SQL Server views, which pointed to Oracle tables. I edited the SSRS report Dataset so as to query directly from the Oracle db. It seems like a very simple change until I got this error message:
System.InvalidCastException: Specified cast is not valid.
With the following details...
Field ‘UOM_QTY’ and it also says at
Oracle.ManagedDataAccess.Client.OracleDataReader.GetDecimal(Int32 i).
The SELECT statement on that field is pretty simple:
, (DELV_RECEIPT.INV_LBS/ITEM_UOM_XREF.CONV_TO_LBS) AS UOM_QTY
Does anyone know what would cause the message, and how to resolve the error? My objective is use to use the ORACLE datasource instead of SQL SERVER.
Error 1
Severity Code Description Project File Line Suppression State
Warning [rsErrorReadingDataSetField] The dataset ‘dsIngredientCosts’ contains a definition for the Field ‘UOM_QTY’. The data extension returned an error during reading the field. System.InvalidCastException: Specified cast is not valid.
at Oracle.ManagedDataAccess.Client.OracleDataReader.GetDecimal(Int32 i)
at Oracle.ManagedDataAccess.Client.OracleDataReader.GetValue(Int32 i)
at Microsoft.ReportingServices.DataExtensions.DataReaderWrapper.GetValue(Int32 fieldIndex)
at Microsoft.ReportingServices.DataExtensions.MappingDataReader.GetFieldValue(Int32 aliasIndex) C:\Users\bl0040\Documents\Visual Studio 2015\Projects\SSRS\Project_ssrs2016\Subscription Reports\Feed Ingredient Weekly Price Avg.rdl 0
Error 2
Severity Code Description Project File Line Suppression State
Warning [rsMissingFieldInDataSet] The dataset ‘dsIngredientCosts’ contains a definition for the Field ‘UOM_QTY’. This field is missing from the returned result set from the data source. C:\Users\bl0040\Documents\Visual Studio 2015\Projects\SSRS\Project_ssrs2016\Subscription Reports\Feed Ingredient Weekly Price Avg.rdl 0
Source Tables:
+------------+---------------+-------------+---------------+-----------+
| Source | TABLE_NAME | COLUMN_NAME | DataSize | COLUMN_ID |
+------------+---------------+-------------+---------------+-----------+
| ORACLE | DELV_RECEIPT | INV_LBS | NUMBER (7,0) | 66 |
+------------+---------------+-------------+---------------+-----------+
| ORACLE | ITEM_UOM_XREF | CONV_TO_LBS | NUMBER (9,4) | 3 |
+------------+---------------+-------------+---------------+-----------+
| SQL SERVER | DELV_RECEIPT | INV_LBS | numeric (7,0) | 66 |
+------------+---------------+-------------+---------------+-----------+
| SQL SERVER | ITEM_UOM_XREF | CONV_TO_LBS | numeric (9,4) | 3 |
+------------+---------------+-------------+---------------+-----------+
The error went away after adding a datatype conversion statement to the data selection.
, CAST(DELV_RECEIPT.INV_LBS/ITEM_UOM_XREF.CONV_TO_LBS AS NUMERIC(9,4)) AS UOM_QTY
Can anyone provide some information on why the original query would be a problem and why the CAST would fix these errors? I tried casting the results because someone on Code Project forum said...
why don't you use typed datasets? you get such head aches just because
of not coding in a type-safe manner. you have a dataset designer in
the IDE which makes the life better, safer, easier and you don't use
it. I really can't understand.
Here is an approach to fix this error with an extension method instead of modifying the SQL-Query.
public static Decimal MyGetDecimal(this OracleDataReader reader, int i)
{
try
{
return reader.GetDecimal(i);
}
catch (System.InvalidCastException)
{
Oracle.ManagedDataAccess.Types.OracleDecimal hlp = reader.GetOracleDecimal(i);
Oracle.ManagedDataAccess.Types.OracleDecimal hlp2 = Oracle.ManagedDataAccess.Types.OracleDecimal.SetPrecision(hlp, 27);
return hlp2.Value;
}
}
Thank you for this but what happens if your query looks like:
SELECT x.* from x
and .GetDecimal appears nowhere?
Any suggestions in that case? I have created a function in ORACLE itself that rounds all values in a result set to avoid this for basic select statements but this seems wrong for loading updateable datasets...
Obviously this is an old-school approach to getting data.
whats the STUFF equivalent in netezza, I am trying to do rows to column concatenation. I tried the GROUP_CONCAT()/ String_AGG as mentioned in the other question but i am not able to use both of them.
I've never used STUFF before, but looking at the description, there is not a native Netezza function that is its equivalent. However, it seems a simple thing to recreate with SUBSTR. Since I don't really use STUFF, take this with a grain of salt, but give it a try.
If we take an example of using STUFF:
SELECT STUFF('abcdef', 2, 3, 'ijklmn');
---------
aijklmnef
(1 row(s) affected)
If I dummy up the values and STUFF parameters into a subselect for demonstration purposes, here's how you can do it with SUBSTR.
SELECT
substr(orig_string ,0,start_pos)
|| replace_string ||
substr(orig_string,start_pos+del_length, LENGTH(orig_string)) new_string,
orig_string , replace_string
FROM
( SELECT
'abcdef' orig_string ,
2 start_pos ,
3 del_length ,
'ijklmn' replace_string ) foo
;
NEW_STRING | ORIG_STRING | REPLACE_STRING
------------+-------------+----------------
aijklmnef | abcdef | ijklmn
(1 row)
You can use GROUP_CONCAT to achieve similar results as with STUFF. The GROUP_CONCAT function must installed from nzlua examples directory on the Netezza Linux environment.
export NZ_PASSWORD='YOURADMINPASSWORD'
cd /nz/extensions/nz/nzlua/examples
../bin/nzl group_concat.nzl
After this group_concat is available in Netezza SYSTEM database. As ADMIN you can execute these commands to make them easily available to all users in a database.
grant execute on system..group_concat(varchar(128)) to public; -- once
create synonym group_concat for system..group_concat; -- in every user database
https://github.com/markfink/dbslim
I'd like to execute the stored procedures with DbSlim using Fitnesse (Selenium, Xebium)
now what I tried to do is:
!define dbQuerySelectCustomerbalance (
execute dbo.uspLogError
)
| script | Db Slim Select Query | !-${dbQuerySelectCustomerbalance}-! |
which gives a green indicator,
however Microsoft SQL Server profiler gives no actions/logging...
so what i'd like to know is: is it possible to use dbslim for executing stored procedures,
if yes
what is the correct way to do it?
By the way, the connection to the Database i've on 1 page, and on the query page i included the connection to the database. (is that ok?)
Take out the !- ... -!. It is used to escape wikified words. But in this case you want it to be translated to the actual query.
!define dbQuerySelectCustomerbalance ( execute dbo.uspLogError )
| script | Db Slim Select Query | ${dbQuerySelectCustomerbalance} |
| show | data by column index | 1 | and row index | 1 |
You can add in the last line which outputing the first column of the first row for testing purpose if your SP is returning some result (or you can create one simple SP just to test this out)
Specifying the connection anywhere before this block will be fine, be it on the same page or in an SetUp/SuiteSetUp/normal page included/executed before.