I have a table in that table there is a column called eq1.sources in that column, entries are like mentioned below. Now I would like to extract the string from the left side to till card slot number only.
Example:
fdn:realm:pam:network:55.150.40.841:shelf-1:cardSlot-1:card:daughterCardSlot-1:daughterCard
for this entry I need only
fdn:realm:pam:network:55.150.40.841:shelf-1:cardSlot-1
similarly
fdn:realm:sam:network:35.250.40.834:shelf-1:cardSlot-1:card
for this entry I need
fdn:realm:sam:network:35.250.40.834:shelf-1:cardSlot-1
I have tried substring(eq1.sources,0,position (':card:daughter' in eq1.sources)). this is working only for row numbers 1,2,4,5,6,7,9,10 but row number 3,8,11 not working as the entries not continued with ':card:daughter'.
The column name for the below entries is eq1.sources.
1.fdn:realm:pam:network:55.150.40.841:shelf-1:cardSlot-1:card:daughterCardSlot-1:daughterCard
2.fdn:realm:pam:network:35.250.40.824:shelf-1:cardSlot-1:card:daughterCardSlot-1:daughterCard
3.fdn:realm:sam:network:35.250.40.834:shelf-1:cardSlot-1:card
4.fdn:realm:pam:network:55.159.40.994:shelf-1:cardSlot-2:card:daughterCardSlot-1:daughterCard
5.fdn:realm:pam:network:35.250.140.104:shelf-1:cardSlot-2:card:daughterCardSlot-1:daughterCard
6.fdn:realm:pam:network:55.170.40.1:shelf-1:cardSlot-2:card:daughterCardSlot-1:daughterCard
7.fdn:realm:pam:network:35.450.40.24:shelf-1:cardSlot-3:card:daughterCardSlot-1:daughterCard
8.fdn:realm:sam:network:35.250.40.14:shelf-1:cardSlot-3:card
9.fdn:realm:pam:network:55.150.40.854:shelf-1:cardSlot-4:card:daughterCardSlot-1:daughterCard
10.fdn:realm:pam:network:35.250.40.84:shelf-1:cardSlot-5:card:daughterCardSlot-1:daughterCard
11.fdn:realm:sam:network:35.250.40.84:shelf-1:cardSlot-6:card
Expecting a PostgreSQL query to extract left side substring from a particular position in a row.
Expected output is
1.fdn:realm:sam:network:35.250.40.834:shelf-1:cardSlot-1
2.fdn:realm:sam:network:35.250.40.14:shelf-1:cardSlot-3:card
from
1.fdn:realm:sam:network:35.250.40.834:shelf-1:cardSlot-1:card:daughterCardSlot-1:daughterCard
2.fdn:realm:sam:network:35.250.40.14:shelf-1:cardSlot-3:card
First split the string into an array with : as a delimiter (this is the t subquery) and then pick the first 7 array elements and join them again into a string with : delimiter.
select array_to_string(arr[1:7], ':') as sources
from
(
select string_to_array(sources, ':') as arr
from the_table
) as t;
See demo.
Related
Say I have a varchar column let's say religions that looks like this: ["Christianity", "Buddhism", "Judaism"] (yes it has a bracket in the string) and I want the string (not array) split into multiple rows like "Christianity", "Buddhism", "Judaism" so it can be used in a WHERE clause.
Eventually I want to use the results of the query in a where clause like this:
SELECT ...
FROM religions
WHERE name in
(
<this subquery>
)
How can one do this?
You can use the function JSON_PARSE to convert the varchar string into an array. Then you can use the strategy described in Convert varchar array to rows in redshift - Stack Overflow to convert the array to separate rows.
You can do the following.
Create a temporary table with sequence of numbers
Using the sequence and split_part function available in redshift, you can split the values based on the numbers generated in the temporary table by doing a cross join.
To replace the double quote and square brackets, you can use the regexp_replace function in Redshift.
create temp table seq as
with recursive numbers(NUMBER) as
(
select 1 UNION ALL
select NUMBER + 1 from numbers where NUMBER < 28
)
select * from numbers;
select regexp_replace(split_part(val,',',seq.number),'[]["]','') as value
from
(select '["christianity","Buddhism","Judaism"]' as val) -- You can select the actual column from the table here.
cross join
seq
where seq.number <= regexp_count(val,'[,]')+1;
I would like to add to the table A all the column of the table B, doing a join based on a common column (type numeric). I am trying to do it using the LEFT JOIN but the columns added are all blank. this is impossible because table b stores, among others, the same ID values . Where I am wrong?
Select * from "2017_01" left join "Registry_2017" on '2017_01.ID' = 'Registry_2017.ID';
You are doing wrong.. I don't know why you can use right for Table calling "2017_01" and different with this '2017_01.ID'..
' = Single quote identifies as String
" = Double quote identifies as Table or Column to escape Naming
Select
*
From
"2017_01"
left join "Registry_2017" on '2017_01.ID' = 'Registry_2017.ID';
So when you doing this '2017_01.ID' = 'Registry_2017.ID' The condition will always become false because those 2 different String are not equal. Postgresql look the condition not as Table and Column but String because you are using Single quote
Select
*
from
"2017_01"
left join "Registry_2017" on "2017_01"."ID" = "Registry_2017"."ID";
So the query should be like that.. Even you already got answer and it got work i must tell this..
Is there a automation tool which can automate the software build on Team Developer (v6.0).
I have tried with multiple automation tools to spy the table object in the application, it identifies it as Gupta ChildTable. But I am not able to retrieve the values from the row.
For example:
1. I have 10 rows in the table(grid) with 12 columns. I need to find the value "AAAAA" contained in first column and select that particular row via Automation.
2. I have 10 rows in the table(grid) with 12 columns. I need to find the value "AAAAA" contained in first column and click on particular cell in that row to input the data via Automation.
Thanks in advance.
Use VisTblFindString . This function ( and many others ) are included into your TD code if include 'VT.apl' in your include libraries .
VisTblFindString will return the Row - so then you simply set context to that row using SalTblSetContext( hWndForm, nRow ) , and then you can refer to the contents of each cell by name to return the value.
Syntax
nRow = VisTblFindString(hWndTable, nStartRow, hWndColumn, sString)
Handle: hWndTable
Number: nStartRow
Number: hWndColumn
String: sString
Description
Locates a string value within a column.
The string must match exactly, but case is ignored. Searching ends when the last row in the table is checked. A SAM_FetchRow message is sent for all rows that have not yet been fetched into the cache.
You can use the pattern matching characters understood by the function SalStrScan. The percent character (%) matches any set of characters. The underscore character ( _ ) matches any single character.
Parameters
hWndTable Table window handle.
nStartRow Row number at which to start the search.
hWndColumn Handle of column to search. Use hWndNULL to search all string columns.
sString String for which to search.
Return Value
Number: The row number if sString is found, or -1 if not found.
Example:
Set nRow = VisTblFindString (twOrders, 0, colDesc, 'AAAAAA')
Call SalTblSetContext( twOrders , nRow )
( Now you can get the value of any cell in nRow by referring to the Column Name )
e.g. Set sCellValue = twOrders.colDesc or Set sCellValue = twOrders.colId etc.
Rows ( or anything what-so-ever in a TableWindow - even the cell borders , backgrounds , lines, row headers etc ) can be treat as an 'Item' or 'Object' by TeamDeveloper . Recommend you use MTbl - it is an invaluable set of add-on functions that make dealing with Tables a breeze. I know of no sites using TableWindows that don't use MTbl. In terms of rows , you can define any row as an Item or Object and manipulate it accordingly. See M!Tbl ( a TableWindows extention ) and specifically fcMTblItem.DefineAsRow( hWndTbl, nRow ).
BTW , you can also use MTbl to completely change the look and feel of your TableWindows , to give them a real modern look.
Very rough napkin code, don't have TD on this computer. Not that you can copy&paste this easily anyway due to the code structure, only line by line.
tbl1 is the name of the table, col1 is the name of the column, substitute to fit your program.
Set nRow = TBL_MinRow
While SalTblFindNextRow( tbl1, nRow, 0, 0 )
Call SalTblSetContext( tbl1, nRow )
If tbl1.col1 = "AAAAA"
Call SalTblSetFocusCell( tbl1, nRow, tbl1.col1, 0, -1 )
Break
This should run through each row, check whether col1 has the chosen value, and then activates edit mode for that cell - provided the column is editable.
I want a query which will return a combination of characters and number
Example:
Table name - emp
Columns required - fname,lname,code
If fname=abc and lname=pqr and the row is very first of the table then result should be code = ap001.
For next row it should be like this:
Fname = efg, lname = rst
Code = er002 and likewise.
I know that we can use substr to retrieve first letter of a colume but I don't know how to use it to do with two columns and how to concatenate.
OK. You know you can use substr function. Now, to concatenate you will need a concatenation operator ||. To get the number of row retrieved by your query, you need the rownum pseudocolumn. Perhaps you will also need to use to_char function to format the number. About all those functions and operators you can read in SQL reference. Anyway I think you need something like this (I didn't check it):
select substr(fname, 1, 1) || substr(lname, 1, 1) || to_char(rownum, 'fm009') code
from emp
In my application i have a query that do multiple joins with a table position. Just like this:
SELECT *
FROM (...) as trips
join trip as t on trips.trip_id = t.trip_id
left outer join vehicle as v on v.vehicle_id = t.trip_vehicle_id
left outer join position as start on trips.start_position_id = start.position_id and start.position_vehicle_id = v.vehicle_id
left outer join position as "end" on trips.end_position_id = "end".position_id and "end".position_vehicle_id = v.vehicle_id
left outer join position as last on trips.last_position_id = last.position_id and last.position_vehicle_id = v.vehicle_id;
My table position has 35 columns(for example position_id).
When I run the query, in result should appear the table position 3 times, start, end and last. But postgres can not distinguish between, for exemplar, start.position_id, end.position_id and last.position_id. So this 3 columns are group and appear as one, position_id.
As the data from start.position_id and end.position_id are different, the column, position_id, that appear in result, it's empty.
Without having to rename all the columns, like this: start.position_id as start_position_id.
How can i get each group of data separately, for exemple, get all columns from the table 'start'. In MYSQL i can do this operation by calling fetch_fields, and give the function an alias, like 'start'.
But i can i do this in Postgres?
Best Regards,
Nuno Oliveira
My understanding is that you can't (or find it difficult to) discern between which table each column with a shared name (such as "position_id") belongs to, but only need to see one of the sets of shared columns at any one time. If that is the case, use tablename.* in your SELECT, so SELECT trips.*, start.*... would show the columns from trips and start, but no columns from other tables involved in the join.
SELECT [...,] start.* [,...] FROM [...] atable AS start [...]