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2 answers
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In Python, I have two arrays: import numpy as np a = np.array([ [1, 0.2], [2, 0.5], [3, 0.8]]) b = np.array([ [2, 0.4], [3, 0.7], [4, 1.3], [5, 2]]) I need to do an "outer join&...
EmilA's user avatar
  • 179
-1 votes
3 answers
72 views

ProjectFundingTable: Project Team TeamFundingAllocation ProjectA Team1 10 ProjectA Team2 15 ProjectB Team1 5 ProjectB Team3 20 WorkDoneTable: Project Team WordDoneAmount ProjectA Team1 5 ProjectA ...
0 votes
1 answer
176 views

Why is LEFT INNER JOIN deprecated, removed or no longer recommended? The join syntax specifies the driving table first (using LEFT or RIGHT), followed by the join method (INNER or OUTER).
1 vote
2 answers
188 views

I have table A: ID Date Amount TimeRef --------------------------- xx 29/Jan 10 123 xx 29/Jan 10 345 And table B: ID Date Amount UIQ --------------------------- xx ...
theBean's user avatar
  • 133
-1 votes
2 answers
101 views

SELECT tb1.id, tb1.start, tb1.end, tb1.name, tb1.code, ROUND (Try_cast(tb2.Value as float),0) AS variable1 FROM tb1 LEFT OUTER JOIN tb2 ON tb1.id = tb2.ID AND tb2.Descript LIKE '%...
iksd's user avatar
  • 19
0 votes
4 answers
157 views

I would like to query some IDs (fixed values) into a table, like a "outer join" with the mandatory fields should be the fixed values. I have to do the same for SQL Server and MySQL, but with ...
-1 votes
1 answer
92 views

I have two select queries, where query A has all the data and I have another query with some data. We need to fetch the uncommon data from both query records. Let's say (query A - query B). Please ...
3 votes
1 answer
469 views

I have three models SwiftData - a parent Event related to two others. I am trying to write a query that joins the two sub-models and filters to only show the results that match the selected event. ...
-1 votes
1 answer
54 views

Could someone help me on how to convert SQL(PL-SQL) from left join to (+)? The example of left join as below. I wonder how to convert left join to (+) operation instead? with a as ( select 1 as a1, ...
0 votes
0 answers
148 views

I'm trying to make an outer join of DF A (with 433 Million rows) and DF B (with 14 rows) in PySpark and I have directly a OOM error. Does Spark is not good for this kind of join ? result = DF1.join(...
1 vote
2 answers
85 views

I have the following two PySpark dataframes: df1: column1 column2 column3 column4 some value some value some value some value1 df2: column1 column2 column3 column5 some value some value some value ...
2 votes
1 answer
191 views

My goal is to join two dataframes from different sources in Python using Pandas and then fill null values in columns with corresponding values in the same column. The dataframes have similar columns, ...
-1 votes
2 answers
521 views

I'm modifying an SQL query so it will be database agnostic (and therefore also would work in SQL Server). This means I have replaced a join-using with a join-on. This worked, but when I placed that ...
-1 votes
1 answer
41 views

So i have three data frame having this information > dim(result) [1] 652265 10 > dim(rat) [1] 107190 2 > dim(mouse) [1] 219016 2 > names(result) [1] "ensembl_gene_id&...
0 votes
1 answer
162 views

I'm building a dashboard and I have 3 tables that I want to compare against each other. I want to be able to see both the matching and non matching rows in all 3 tables Table 1 (all rows are unique) ...

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