I know only one record fetching form sql query in jdbc example, do I need to use result set interface to store that only one row, or is there any way to store results from single result queries?
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I am using golang,squirrel query builder tool and postgres DB.
I am having a query conatining a VALUES clause for "constant table" building.
The indiviual column values inside the VALUES clause are generated from an external map.
That part of the query would be similar to the one given below.
VALUES('us','us'),('ca','ca'),('se','eu').........
i am using the sqlmock library of go. ref:-https://pkg.go.dev/github.com/DATA-DOG/go-sqlmock#v1.5.0
In the testing phase, I am checking whether the raw query is as expected.
But the problem i am facing is like, the order of the individual rows inside the VALUES
clause keeps on changing. So i cannot frame an exact expected query to match the actual sql query.
I have multiple queries that need to filter data on elasticsearch. This queries are returning document ids from indexes that match the filter.
However i need to do another operation depending from user selection, to extract/add document unique id's from previous sum of queries with current query. The maximum number of query search is 5.
Is there an option in elastic so it will extract/add document id's from previous query? Right now i am doing this part in PHP with foreach iteration that takes a lot of time.
Edit
Example :
Ok let say we have one query on same index that contains :
{"query":{"bool":{"filter":[{"wildcard":{"182_empanalyzed":"example"}}]}}}
we will need to substract the document ids from the following query on same index :
{"query":{"bool":{"must_not":[{"nested":{"path":"184","query":{"exists":{"field":"184.*"}}}}]}}}
Keep in mind that this queries are example with only one condition in it, there might be more complexes queries with many fields to be searched on in each query. And from each following query there is an option to substract/add documents ids
Right now i'm trying to solve the problem where a calculated field for each object in a set of objects is dependent on input from the client and the results need to be sorted by this calculated field.
I know it is easily solvable using SQL, but let's say the query results are dependent on multiple external API's and calculated fields are dependent on the results of these API requests. How would the client be able to sort these query results using one of the available calculated fields?
I am trying to read an excel sheet using itemreader and pass it to writer where i need to query for record existence. I am not sure how to access result set of jdbcbatchitemwriter so that i can validate whether query results. can any one please guide
It can actually be done in ItemProcessor. To filter a record, one simply returns "null" from the ItemProcessor.(Ref : here)
This post explains how to drop the duplicates in ItemProcessor. As per this example, you can maintain the list of previousItems from database to drop out the records.
i have an sql query which selects a list of data.
but i want to use this data after filtering it in excel table (not in power query)
i tried to create another "query from table" but it takes all the data, not the filtered one.
Example File
any ideas ?
If you filter the table in Excel, it will only hide the rows that do not meet the selection criteria, it will not delete the rows.
In order to get a filtered table, you can create a separate table with filter criteria and use that to create a filtered table, either by using Advanced Filtering in Excel, or by using Power Query.
In this video I illustrate how to do it with Advanced Filtering.