I have a apex item with values like Value1,Value2,Value3, so on i need to show the values like below
Value 1
Value 2
Value 3
below is my select query, can anyone help here to show the comma seperated values as one below another
ex :: a,b,c,d
i need to see the output as
a
b
c
d
SELECT AD.EMAIL_ADDRESS recipient
FROM HES_EXTERNAL_ACCOUNTS EA,
HES_ADDRESSES AD
WHERE EA.ACCOUNT_CODE = 'AUTO';
The above query will result the email address like a,b,c,d i need to show in apex item as
a
b
c
d
While Chris Saxon's post describe many SQL scenarios, and a cool SQL macro, APEX provides a simple tool for splitting strings into rows:
select column_value from table(apex_string.split('a,b,c,d',','));
Result Sequence
----------------
a
b
c
d
That table() clause isn't required from a certain db version, perhaps 18c.
But your question isn't completely clear as to the output you need. On one hand it seems like you want to replace commas with spaces
replace('a,b,c,d', ',', ' ')
but then another moment you suggest one of top of the other
replace('a,b,c,d', ',', '<br>')
If displayed as a column in a report, this would need escaping turned off.
If that select returns a single row, then this is a possible solution:
CREATE TABLE emails (email_list) AS (
select 'mickey.mouse#disney.com, homer.simpson#acme.com'
from dual
);
Table EMAILS created.
select TRIM(regexp_substr (
email_list,
'[^,]+',
1,
level
)) email
from emails
connect by level <=
length ( trim ( both ',' from email_list ) ) -
length ( replace ( email_list, ',' ) ) + 1;
EMAIL
-----------------------------------------------
mickey.mouse#disney.com
homer.simpson#acme.com
But Chris has already done all the research and blogged about it here. That blog sums up most common cases and a solution in each of those cases.
Related
I am trying to extract the following from the text field using Regrex in Oracle.
For example
"This is example,
and this really a example :h,j,j,j,j,
l //Updated question , as this letter is on the next line
now this is a disease:yes"
I am expecting a result as h,j,j,j,j,l, but if I use
REGEXP_SUBSTR(text_field,'example :[^:]+,') AS Result
I am getting example:h,j,j,j,j
But I am not getting the last letter 'l' like above and I am guessing that's because it's on the next line.Also, if I want the string "disease:yes" only, that will be so helpful as well. Thank you much!
The result you are getting is because your pattern includes the word 'example' and ends with a comma, leaving out the ending 'l'. Try this form instead. Note the example is shown using a Common table Expression (CTE). The WITH statement creates the table called tbl which just sets up test data, kind of like a temp table. This is also a great way to set up data when asking a question. This form of the REGEXP_SUBSTR() function uses a captured group, which is the set of characters after the string 'example:' until the end of that line in the multi-line field. From this you should be able to get the other string you are after. Give it a go.
WITH tbl(text_field) AS (
SELECT 'This is example,
and this really a example :h,j,j,j,j,l
now this is a disease:yes' FROM dual
)
SELECT REGEXP_SUBSTR(text_field,'example :(.*)', 1, 1, NULL, 1) AS Result
FROM tbl;
RESULT
-----------
h,j,j,j,j,l
1 row selected.
Edit based on new info. Since that last letter could be on it's own line, you'll need to allow for the newline. Use the 'n' flag to REGEXP_REPLACE() which allows the newline to match in the usage of the dot (match any character) symbol in regex. We switch to REGEXP_REPLACE as we'll need to return multiple capture groups. Here the WITH sets up 2 rows, one with an embedded newline in the data and one without. The capture groups are (going left to right) 1-the data after "example :" and ending in a comma, 2-the optional newline and 3-the next single character. Then replace the entire data with captured groups 1 and 3 (leaving out the newline).
NOTE this is very specific to the case of only 1 character on the following line.
WITH tbl(ID, text_field) AS (
SELECT 1, 'This is example,
and this really a example :h,j,j,j,j,
l
now this is a disease:yes' FROM dual UNION ALL
SELECT 2, 'This is example,
and this really a example :h,j,j,j,j,l
now this is a disease:yes' FROM dual
)
SELECT ID,
REGEXP_REPLACE(text_field, '.*example :(.*,)('||CHR(10)||')?(.).*', '\1\3', 1, 1, 'n') AS Result
FROM tbl;
ID RESULT
---------- ------------
1 h,j,j,j,j,l
2 h,j,j,j,j,l
2 rows selected.
I have a better-sqlite3 statement that orders and ranks my database, and I have a IN statement so I can select more than 1 row. That is where I run into an issue, I need to fetch multiple rows based on a dynamic array of IDs.
My SQLITE Statement looks like this:
Table.prepare('SELECT *, RANK () OVER (ORDER BY amount DESC) rank FROM table WHERE user IN(?)');
And I try to get from this statement with things like this:
getAll.get(['1','2','3']);
getAll.get('6,9,4');
getAll.get('7','5','8');
I get an error:
RangeError: Too many parameter values were provided
How exactly can I select multiple values without knowing the length of my array (so ?,? won't cut it), and allow as much values as possible? I used ?* and I get a Syntax error.
I am using better-sqlite3 for Node.JS
Instead of IN use the operator LIKE:
SELECT *, RANK () OVER (ORDER BY amount DESC) rank
FROM table
WHERE ',' || ? || ',' LIKE '%,' || user || ',%'
and pass the list as 1 string of comma separated values (without spaces):
all('6,9,4');
I have been looking all day for a solution that works for my situation. I have found some things that are very similar but don't work for my situation, I tried them.
Here is the scenario; I have two table base and partdetails. I have an asp website (internal ONLY) that has drop down lists to select the parameters for a SQL query that fills a data grid view.
My problem is this, I need to be able, based on the drop down list boxes on the page, assign the column name that the criteria that is entered to be searched for.
Here is the query that I am trying to define: (This one returns 0 rows)
sqlCmd.CommandText = ("Select ba.referenceid, ba.partnum, pd.width, pd.length, CONVERT(varchar(12), pd.dateentered, 101) As [dateentered], ba.partqty, ba.status, ba.material From tbl_dlbase ba Join tbl_partdetails pd On ba.referenceid = pd.referenceid Where Case #field1 When 'part #' Then 'ba.partnum' When 'Spacing' Then 'pd.spacing' When 'Surface' Then 'pd.surface' When 'Height' Then 'pd.height' When 'Thickness' Then 'pd.thickness' End Like '%' + #criteria1 + '%'")
sqlCmd.Parameters.AddWithValue("#field1", ddlSc1.SelectedItem.Text)
sqlCmd.Parameters.AddWithValue("#criteria1", txbCriteria1.Text)
This is the latest version of the SQL statement that I have tried. I need to be able to set the field/column name based on the selection from the drop down list ddlsc1 on the asp page.
I have also been trying the queries in Studio manager to see if maybe I have fat fingered something but it also returns 0 rows so I know something is wrong with the query.
So how can I set the column name field using a parameter for the name. I know this is a huge security concern with SQL injection but this is an internal only site, and more importantly my boss said he wants it done with variables.
I don't really see a problem with this other than you have single quotes around your THEN values. Does this fix it?
SELECT ba.referenceid
,ba.partnum
,pd.width
,pd.length
,CONVERT(VARCHAR(12), pd.dateentered, 101) AS [dateentered]
,ba.partqty
,ba.STATUS
,ba.material
FROM tbl_dlbase ba
JOIN tbl_partdetails pd ON ba.referenceid = pd.referenceid
WHERE CASE #field1
WHEN 'part #'
THEN ba.partnum
WHEN 'Spacing'
THEN pd.spacing
WHEN 'Surface'
THEN pd.surface
WHEN 'Height'
THEN pd.height
WHEN 'Thickness'
THEN pd.thickness
END LIKE '%' + #criteria1 + '%'
I have a SQLite table where one column contains a JSON array containing 0 or more values. Something like this:
id|values
0 |[1,2,3]
1 |[]
2 |[2,3,4]
3 |[2]
What I want to do is "unfold" this into a list of all distinct values contained within the arrays of that column.
To start, I am using the JSON1 extension's json_each function to extract a table of values from a row:
SELECT
value
FROM
json_each(
(
SELECT
values
FROM
my_table
WHERE
id == 2
)
)
Where I can vary the id (2, above) to select any row in the table.
Now, I am trying to wrap this in a recursive CTE so that I can apply it to each row across the entire table and union the results. As a first step I replicated (roughly) the results from above as follows:
WITH RECURSIVE result AS (
SELECT null
UNION ALL
SELECT
value
FROM
json_each(
(
SELECT
values
FROM
my_table
WHERE
id == 2
)
)
)
SELECT * FROM result;
As the next step I had originally planned to make id a variable and increment it (in a similar manner to the first example in the documentation, but haven't been able to get that to work.
I have gone through the other examples in the documentation, but they are somewhat more complex and I haven't been able to distill those down to see how they might apply to this problem.
Can someone provide a simple example of how to solve this (or a similar problem) with a recursive CTE?
Of course, my goal is to solve the problem with or without CTEs so Im also happy to hear if there is a better way...
You do not need a recursive CTE for this.
To call json_each for multiple source rows, use a join:
SELECT t1.id, t2.value
FROM my_table AS t1
JOIN json_each((SELECT "values" FROM my_table WHERE id = t1.id)) AS t2;
I want to execute a SELECT query on a database table that has 6 key fields, let's assume they are keyA, keyB, ..., keyF.
As input parameters to my ABAP function module I do receive an internal table with exactly that structure of the key fields, each entry in that internal table therefore corresponds to one tuple in the database table.
Thus I simply need to select all tuples from the database table that correspond to the entries in my internal table.
Furthermore, I want to aggregate an amount column in that database table in exactly the same query.
In pseudo SQL the query would look as follows:
SELECT SUM(amount) FROM table WHERE (keyA, keyB, keyC, keyD, keyE, keyF) IN {internal table}.
However, this representation is not possible in ABAP OpenSQL.
Only one column (such as keyA) is allowed to state, not a composite key. Furthermore I can only use 'selection tables' (those with SIGN, OPTIOn, LOW, HIGH) after they keyword IN.
Using FOR ALL ENTRIES seems feasible, however in this case I cannot use SUM since aggregation is not allowed in the same query.
Any suggestions?
For selecting records for each entry of an internal table, normally the for all entries idiom in ABAP Open SQL is your friend. In your case, you have the additional requirement to aggregate a sum. Unfortunately, the result set of a SELECT statement that works with for all entries is not allowed to use aggregate functions. In my eyes, the best way in this case is to compute the sum from the result set in the ABAP layer. The following example works in my system (note in passing: using the new ABAP language features that came with 7.40, you could considerably shorten the whole code).
report zz_ztmp_test.
start-of-selection.
perform test.
* Database table ZTMP_TEST :
* ID - key field - type CHAR10
* VALUE - no key field - type INT4
* Content: 'A' 10, 'B' 20, 'C' 30, 'D' 40, 'E' 50
types: ty_entries type standard table of ztmp_test.
* ---
form test.
data: lv_sum type i,
lt_result type ty_entries,
lt_keys type ty_entries.
perform fill_keys changing lt_keys.
if lt_keys is not initial.
select * into table lt_result
from ztmp_test
for all entries in lt_keys
where id = lt_keys-id.
endif.
perform get_sum using lt_result
changing lv_sum.
write: / lv_sum.
endform.
form fill_keys changing ct_keys type ty_entries.
append :
'A' to ct_keys,
'C' to ct_keys,
'E' to ct_keys.
endform.
form get_sum using it_entries type ty_entries
changing value(ev_sum) type i.
field-symbols: <ls_test> type ztmp_test.
clear ev_sum.
loop at it_entries assigning <ls_test>.
add <ls_test>-value to ev_sum.
endloop.
endform.
I would use FOR ALL ENTRIES to fetch all the related rows, then LOOP round the resulting table and add up the relevant field into a total. If you have ABAP 740 or later, you can use REDUCE operator to avoid having to loop round the table manually:
DATA(total) = REDUCE i( INIT sum = 0
FOR wa IN itab NEXT sum = sum + wa-field ).
One possible approach is simultaneous summarizing inside SELECT loop using statement SELECT...ENDSELECT statement.
Sample with calculating all order lines/quantities for the plant:
TYPES: BEGIN OF ls_collect,
werks TYPE t001w-werks,
menge TYPE ekpo-menge,
END OF ls_collect.
DATA: lt_collect TYPE TABLE OF ls_collect.
SELECT werks UP TO 100 ROWS
FROM t001w
INTO TABLE #DATA(lt_werks).
SELECT werks, menge
FROM ekpo
INTO #DATA(order)
FOR ALL ENTRIES IN #lt_werks
WHERE werks = #lt_werks-werks.
COLLECT order INTO lt_collect.
ENDSELECT.
The sample has no business sense and placed here just for educational purpose.
Another more robust and modern approach is CTE (Common Table Expressions) available since ABAP 751 version. This technique is specially intended among others for total/subtotal tasks:
WITH
+plants AS (
SELECT werks UP TO 100 ROWS
FROM t011w ),
+orders_by_plant AS (
SELECT SUM( menge )
FROM ekpo AS e
INNER JOIN +plants AS m
ON e~werks = m~werks
GROUP BY werks )
SELECT werks, menge
FROM +orders_by_plant
INTO TABLE #DATA(lt_sums)
ORDER BY werks.
cl_demo_output=>display( lt_sums ).
The first table expression +material is your internal table, the second +orders_by_mat quantities totals selected by the above materials and the last query is the final output query.