I have a specific query. In Netezza, I need to assign the value of one record to another record. I am trying as below,
record1 := record2;
But it is not working this way. While if I try to assign individual values, it is working. Like...
record1.col1 := record2.col1;
Can we all the values at the same time as done in Oracle. If possible, how?
Related
I have a flat file and used conditional split to filter the record into a single row. For example, RecordType == "2" retrieves single row with record having multiple columns say A,B,C,D and E. I want to pass the result of Column C value to a variable. And then to use it to update the table like:
Update tablename
Set A = that variable
Where A is null
Could you please help me in find out the solution.
I would not use the variable but use a Ole DB Command object.
You set the connection.
Then add your SQL from above:
Update tablename Set A = ? Where A is null
The map to Col C.
However, what I might guess you are trying to do is add a column to your other record set that has the detail but no key.
I would use a script component to do this:
Similar to this example:
Importing Grouped Report Data to Database
I am using Microsoft SQL Server Report Builder 3.0. I have created a Stored Procedure (stored_procedure1) in the database which has a Parameter (parameter1). Here, stored_procedure1 returns result1.
Then, I used stored_procedure1 to create a Dataset (dataset1) in the Microsoft SQL Report Builder 3.0. Next, I created a Table (table1) in Microsoft SQL Report Builder 3.0 with 2 rows and 2 columns (total 4 cells).
I would like to fill each element of table1 with result1 from dataset1. Hence, I set expression of each cell of table1 as follows:
=Sum(Fields!result1.Value, "dataset1")
When I run this report, it works perfectly and asks me to enter parameter1. However, I want to use single Dataset (dataset1) with different values of parameter1 for each cell of the table. Hence, I want to pass/set parameter1 with unique parameter_value for each expression of table cells. Say I want to set parameter1 = parameter_value1 for first cell.
For example, if I need to set parameter_value = 5, I did something like
=Sum(Fields!result1.Value, "dataset1"), Parameters!parameter1.Value = 5
I also tried following:
=Sum(Fields!result1.Value, "dataset1") & Parameters!parameter1.Value = 5.
It doesn't work.
In summary, I coudln't pass or set parameter value together with an expression.
Can we set/parameter value.
I would like to thank you in advance.
If anyone got stuck with this problem, I found a way around for this. T
here is no way one can pass parameter within expression.
You will need to create a subreport to do this. You can pass parameter to subreport.
Its little time consuming. However, it seems there is no other way around.
I am using PostgreSQL 9.4.1 and have run into an issue with a column that I need to update. The column is of type JSON with elements in the following format:
["a","b","c",...]
["a","c","d",...]
["c","d","e",...]
etc.
so that each element is a string. It is my understanding that each of these elements are considered keys to the JSON array (please correct me if I am a bit confused here, I haven't ever worked with JSON datatype columns before, so I'm still trying to get a grip on them anyways). There is not an actual pattern to these arrays, and their contents are dependent on user input from somewhere else. My goal is to update any of the arrays that contain a particular element (say "b" for the purpose of explaining my question more thoroughly) and replace the content "b" with say "b1". Meaning that:
["a","b","c",...]
would be updated to
["a","b1","c",...]
I have found a few ways listed on this site (I don't currently have the links, but I can find them again if necessary) to update VALUES for a particular KEY, but I haven't found a way mentioned to change the KEY itself. I have already found a way to target the specific rows of interest by doing something similar to:
SELECT *
FROM TableA
WHERE column::json ?| ["b", other string elements of interest]
Any suggestions would be greatly appreciated. Thanks for your help!
So I went ahead and gave that a check (because it looks like it should work, and it's more or less what I ended up doing), but I figured out what I was trying to do! What I got was this:
UPDATE TableA
SET column = REPLACE(column::TEXT,'b','b1')::JSON
WHERE column::JSON ?| ['b']
And now that I think about it, I probably don't even need the last where condition because the replace won't affect anything that doesn't have 'b' in it. But that worked for me, and it looks like yours probably should too! Thanks for the help!
I wanted to rename a specific key for json array column.
I tried and it worked on PostgreSQL 9.4:
UPDATE Your_Table_Name
SET Your_Column_Name = replace(Your_Column_Name::TEXT,'Key_Old_Name','Key_New_Name')::json
WHERE attributes::jsonb ? 'Key_Old_Name'
Basically, solution is to go over the list of json_array_elements, and based on json value using CASE condition replace certain value with other one. After all, need to re-build new json array using array_agg() and to_json() description of aggregate functions in psql is here.
Possible query can be the following:
-- Sample DDL and JSON data
CREATE TABLE jsontest (data JSON);
INSERT INTO jsontest VALUES ('["a","b","c"]'::JSON);
-- QUERY
WITH result AS (
SELECT to_json( -- creating updated json structure
array_agg( -- create array with new element "b1"
CASE WHEN element::TEXT = '"b"' -- here we process array elements to find "b"
THEN to_json('b1'::TEXT)
ELSE element
END)) as new_json
FROM jsontest,json_array_elements(jsontest.data) as element
)
UPDATE jsontest SET data = result.new_json FROM result;
Here is the array function I am using:
=IFERROR(INDEX('Master Data'!$D$2:$D$153,MATCH(1,(B9='Master Data'!$J$2:$J$153)*('Master Data'!$W$2:$W$153=1),FALSE)),"")
Where D is the name of a project, J is a persons name and W is a flag to check if they are assigned to a project either equal to 0 or 1. B is also an instance of the persons name that is built up from a seperate list.
It basically references the master data and returns any rows with the criteria specified. However a single person may have two instances where the assigned flag is equal to 1 and thus as the master data is filtered different results are given back by the function.
Another problem I have is that the persons name is not repeated either so maybe the best way would be to start populating the names in the assigned table from the master data as well.
As requested here is an slight example of the data. On the left is the master data, the middle is the assigned table thats being built and the right is the list of employees that builds up the names in the assigned table.
Please note that there is two instances of david smith in the master data but only one in the assigned table as its being built with the employees list.
What I was thinking was to build up the names in the assigned table from the master data using an array where the assigned indicator is equal to 1 and to completely scrap the employees list, but I'm really unsure if this is possible or how to go about it.
Or even if there was some sort of way to select a few columns from the master data where the assigned indicator = 1?
Not sure if I understood it right. But the problem how to list multiple lookup results is achievable with SMALL function in combination with getting an array of ROW numbers.
For example have a sheet like this:
Then formulas are:
F4 downwards:
=COUNTIFS($B:$B,$E4,$C:$C,1)
G4 and then copied in G4:J8:
{=INDEX($A$1:$A$1000,SMALL(IF($B$1:$B$1000=$E4,IF($C$1:$C$1000=1,ROW($1:$1000))),COLUMN(A:A)))}
But if the goal is only to have a filtered list of all assigned resources, then the formulas could be
E13:
{=INDEX($B$1:$B$1000,MATCH(1,($C$1:$C$1000=1)*1,0))}
E14 downwards:
{=INDEX($B$1:$B$1000,MATCH(1,(COUNTIF($E$13:$E13,$B$1:$B$1000)=0)*($C$1:$C$1000=1),0))}
Formulas in {} are array formulas. These are entered into the cell without the curly brackets and then [Ctrl]+[Shift]+[Enter] is pressed to finish.
I have not handled the error values for better understanding the formulas. You can later hide the error values with IFERROR. You seems to know how to do this.
I'm sure there must be a really easy way to do this, but I can't figure out how, and a search hasn't yielded a solution. Here's what I want to do, but it's illegal:
update test_table set q_name = {'SKELETAL','LEWIS','MECHANISM', ...}[q_type];
That is, q_type has an integer value, and I want to populate q_name with a string value that depends on the value of q_type. I can do it with a separate set statement for every value of q_type, but I'd rather do it with a single call. Any ideas how to do it without getting into PL/SQL?
The way that I would handle that is using the xml datatype and just populate that xml variable and then update the table from that.
here's the reference on the xml data type