I have string variable "Distance1" with value '100' and "Distance2" with value '200' and "Distance3" with value '300'
I would like to create "TotalDistance" variable which cast variables as int or float and sums them together. String variable "TotalDistance" value would be 600.
How to formulate variable in "Set Variable" activity in Azure Data Factory?
#string(add(add(int(variables('Distance1')),int(variables('Distance2'))),int(variables('Distance3'))))
Related
I would like to create ForEach loop and need advice:
I have "Fetch" Lookup with "Select CustomerName, Country From Customers".
It return rows like "Tesla, USA" and "Nissan, Japan". There are total 10 rows.
I would like to run ForEach loop for 10 times and use CustomerName and Country value in pipeline.
ForEach settings values are current set: #activity('Fetch').output (something wrong here?)
I would like to create new Lookup inside ForEach. I would like in Lookup query "SELECT * FROM Table WHERE CustomerName = 'CustomerName' and Country = 'CountryName'"
Error of ForEach:
The function 'length' expects its parameter to be an array or a string. The provided value is of type 'Object'.
The Items property of the For Each activity should look something like this:
#activity('Fetch').output.value
You can then reference columns from your Lookup within the For Each activity using the item() syntax, eg #item().CustomerName. Remember, expressions in Azure Data Factory (ADF) start with the # symbol but you don't have to repeat it in the string.
I have an integer field coming and I want to extract the first digit from the field, how can I do it. I cannot cast the field since the data is coming from a dataset, is there a way to extract first digit from the transformer stage in IBM datastage?
Example:
Input:
ABC = 1234
Output: 1
Can anyone please help me with the same?
Thanks!
Use a transformer, define a stage variable as varchar and use this formula to get the substring
ABC[1,1]
Alternatively you can also convert your numeric value by using the DecimalToString
You CAN convert to string within the context of your expression, and back again if the result needs to be an integer.
AsInteger(Left(ln_jn_ENCNTR_DTL.CCH,1)
This solution has used implicit conversion from integer to string. It assumes that the value of CCH is always an integer.
I would say- if ABC has type int, you can define a stage variable of type char having length 1.
then you need to convert Number to string first.And use Left function to extract the first char.
Left(DecimalToString(ABC),1).
If you are getting ABC as string, you can directly apply left function.
You can first define a stage variable (name say SV) of varchar type (to convert input integer column into varchar) :
Stage variable definition
Now assign the input integer column to stage variable SV and derive output integer column as AsInteger(SV[1,1]) : Column definition
i.e. input integer => (Type conversion to varchar) Stage variable => Substring[1,1] and Substring Conversion to Integer using AsInteger.
DecimalToString is an implicit conversion, so all you need is the Left() function. Left(MyString,1)
I want to create a Date type global variable which I want to pass to a child job. I am able to pass String and Integer type to child one. But getting hard luck with Date type as shown in this image:
Below is the code I am writing in my tjavarow. In the child job context the variables pass this global variable's value. And I'm using those, now, in the child job toracleInput. I have to use the two Date type Contexts where the global variable Value will be coming from the parent job.
This is my code:
String fromdate_file_epsilon=input_row.START_DATE1;
globalMap.put("fromdate_file_epsilon", fromdate_file_epsilon);
String todate_file_epsilon = input_row.END_DATE1;
globalMap.put("todate_file_epsilon",todate_file_epsilon);
Date fromdate_epsilon = input_row.START_DATE;
globalMap.put("fromdate_epsilon", fromdate_epsilon);
Date todate_epsilon = input_row.END_DATE;
globalMap.put("todate_epsilon", todate_epsilon);
Integer load_key_epsilon = input_row.LOAD_KEY;
globalMap.put("load_key_epsilon", load_key_epsilon);
System.out.println(fromdate_epsilon);
I am passing the global variable values of the parent job to the child job's context values like Brand=((String)globalMap.get("brand_epsilon") on the ChildJob component.
As I proposed on Talend Community Forum, I strongly recommend you to leave date context variables as string and to convert the values as Oracle datatype using the to_date function into the where clause like this:
...
AND TRUNC(ACTIVITY_DATE) >= TO_DATE('" + context.FROMDATE + "', 'yyyy_mm-dd')"
...
date format is given here as an example.
TRF
I can't figure out why this works
var blah = this.Database.SqlQuery<MyObjectWithTwoStringPropsNamedKeyAndValue>("exec mySproc").ToList();
and this doesn't
var blah = this.Database.SqlQuery<KeyValuePair<string,string>>("exec mySproc").ToList();
"mySproc" returns three records with two varchar columns aliased "Key" and "Value".
In the second line of code, I get a list of three KeyValuePairs, but both properties (Key and Value) are null for each item in the list.
That's because the KeyValuePair properties, Key and Value are readonly properties.
The values for Key and Value can only be set in the constructor, and not changed later.
SqlQuery tries to map the columns returned by the stored procedure, but cannot find properties in which to write them. The documentation doesn't state that the properties must be writeable, but it's clear that it won't use the parameterized constructor, but the properties.
The type can be any type that has properties that match the names of the columns returned from the query, or can be a simple primitive type.
I am trying to create a formula with multiple parameters that may or may not have a value entered.
The database field and corresponding parameters are:
{DataTableTicket.Master_Account_Code}={?MastNo})
{DataTableTicket.Description}={?RTCode}
{DataTableTicket.Problem_Code}={?ProbCode}
{DataTableTicket.Resolution_Code}={?ResCode}
{DataTableTicket.Customer_Number}={?CustNo}
{DataTableTicket.Master_Account_Code}={?MastNo})
I am trying to write an IF THEN statement that takes into consideration the various combinations, since you can enter in a ?MastNo value but not populate the rest of the parameters.
I think the basic formula would be something like this (if parameter is blank then all records else parameter). What I am struggling with is how to get that basic formula created since there are so many combinations.
For each parameter that "may or may not have a value", set it to a default value.
If the value for the parameter is entered then set the parameter to the entered value.
I usually do something like:
// Assumes that 0 represents all values; single value; numeric
( 0={?Parameter} OR {Table.Field}={?Parameter} )
// Assumes that 0 represents all values; multiple values; numeric
( 0 IN {?Parameter} OR {Table.Field} IN {?Parameter} )
In your situation:
( 0={?MastNo} OR DataTableTicket.Master_Account_Code}={?MastNo} ) AND
( 0={?RTCode} OR {DataTableTicket.Description}={?RTCode} )
...