I want to set the chosen field to true in table e:\ctw for all records of field name which are not like name2 in the d:\le table. The 'ctw.name' records have equal or more characters than the le.name2 records so I want to implement wild card searches; for example,
le.name2 = abc,
ctw.name = abc\12a
So, I want to use a wild card search like 'abc%', but without hard coding a record value. That is, I want to know whether it is possible to combine a field name with wildcard search as below:
UPDATE ctw SET chosen = .t. WHERE LOWER(name) NOT LIKE ((select LOWER(name2) from le)+'%')
I get a function name is missing ) error upon command input.
Try it like this:
SET ANSI OFF
UPDATE ctw ;
SET chosen = .t.
WHERE LOWER(name) NOT IN (select LOWER(name2) from le)
Probably this is what you mean:
UPDATE ctw SET chosen = .t. ;
from le ;
where LOWER(name) LIKE lower(trim(le.Name2))+'%'
And because, by default VFP comparisons in SQL are not ANSI this would mean the same:
UPDATE ctw SET chosen = .t. ;
from le ;
where LOWER(name) = lower(trim(le.Name2))
But I wouldn't trust the non-ANSI implementation and use the ANSI implementation with LIKE.
Related
I am trying to update a null column using another tables value but it doesn't seems to work right. below codes were tried
SET
"Test name "= "Test"(
SELECT Transformertest.Test,Transformertest.TestID
FROM public.Transformertest WHERE TestID='Tes3')
WHERE test2table.Type='Oil Immersed Transformers'
UPDATE
public.test2table
SET
"Test name" = subquery."Test"
FROM
(
SELECT
"Test"
FROM Transformertest WHERE "TestID"='Tes2'
) AS subquery
WHERE
"Type"='Auto Transformer' AND "Phase"='3' AND "Rated Frequency"='60';
enter image description here
don't use space in column name.
Integers don't need to be quoted
See the result here (enter link description here)
what you need to do here (assuming Phase and Rated Frequency are integers)
remove unnecessary "" and spaces on column names
UPDATE
public.test2table
SET
test_name = subquery.Test
FROM
(
SELECT
test
FROM Transformertest WHERE Test_ID='Tes2'
) AS subquery
WHERE
Type='Auto Transformer' AND Phase=3 AND Rated_Frequency=60;
this should be working now
I have the following select statement in ABAP:
SELECT munic~mandt VREFER BIS AB ZZELECDATE ZZCERTDATE CONSYEAR ZDIMO ZZONE_M ZZONE_T USAGE_M USAGE_T M2MC M2MT M2RET EXEMPTMCMT EXEMPRET CHARGEMCMT
INTO corresponding fields of table GT_INSTMUNIC_F
FROM ZCI00_INSTMUNIC AS MUNIC
INNER JOIN EVER AS EV on
MUNIC~POD = EV~VREFER(9).
"where EV~BSTATUS = '14' or EV~BSTATUS = '32'.
My problem with the above statement is that does not recognize the substring/offset operation on the 'ON' clause. If i remove the '(9) then
it recognizes the field, otherwise it gives error:
Field ev~refer is unknown. It is neither in one of the specified tables
nor defined by a "DATA" statement. I have also tried doing something similar in the 'Where' clause, receiving a similar error:
LOOP AT gt_instmunic.
clear wa_gt_instmunic_f.
wa_gt_instmunic_f-mandt = gt_instmunic-mandt.
wa_gt_instmunic_f-bis = gt_instmunic-bis.
wa_gt_instmunic_f-ab = gt_instmunic-ab.
wa_gt_instmunic_f-zzelecdate = gt_instmunic-zzelecdate.
wa_gt_instmunic_f-ZZCERTDATE = gt_instmunic-ZZCERTDATE.
wa_gt_instmunic_f-CONSYEAR = gt_instmunic-CONSYEAR.
wa_gt_instmunic_f-ZDIMO = gt_instmunic-ZDIMO.
wa_gt_instmunic_f-ZZONE_M = gt_instmunic-ZZONE_M.
wa_gt_instmunic_f-ZZONE_T = gt_instmunic-ZZONE_T.
wa_gt_instmunic_f-USAGE_M = gt_instmunic-USAGE_M.
wa_gt_instmunic_f-USAGE_T = gt_instmunic-USAGE_T.
temp_pod = gt_instmunic-pod.
SELECT vrefer
FROM ever
INTO wa_gt_instmunic_f-vrefer
WHERE ( vrefer(9) LIKE temp_pod ). " PROBLEM WITH SUBSTRING
"AND ( BSTATUS = '14' OR BSTATUS = '32' ).
ENDSELECT.
WRITE: / sy-dbcnt.
WRITE: / 'wa is: ', wa_gt_instmunic_f.
WRITE: / 'wa-ever is: ', wa_gt_instmunic_f-vrefer.
APPEND wa_gt_instmunic_f TO gt_instmunic_f.
WRITE: / wa_gt_instmunic_f-vrefer.
ENDLOOP.
itab_size = lines( gt_instmunic_f ).
WRITE: / 'Internal table populated with', itab_size, ' lines'.
The basic task i want to implement is to modify a specific field on one table,
pulling values from another. They have a common field ( pod = vrefer(9) ). Thanks in advance for your time.
If you are on a late enough NetWeaver version, it works on 7.51, you can use the OpenSQL function LEFT or SUBSTRING. Your query would look something like:
SELECT munic~mandt VREFER BIS AB ZZELECDATE ZZCERTDATE CONSYEAR ZDIMO ZZONE_M ZZONE_T USAGE_M USAGE_T M2MC M2MT M2RET EXEMPTMCMT EXEMPRET CHARGEMCMT
FROM ZCI00_INSTMUNIC AS MUNIC
INNER JOIN ever AS ev
ON MUNIC~POD EQ LEFT( EV~VREFER, 9 )
INTO corresponding fields of table GT_INSTMUNIC_F.
Note that the INTO clause needs to move to the end of the command as well.
field(9) is a subset operation that is processed by the ABAP environment and can not be translated into a database-level SQL statement (at least not at the moment, but I'd be surprised if it ever will be). Your best bet is either to select the datasets separately and merge them manually (if both are approximately equally large) or pre-select one and use a FAE/IN clause.
They have a common field ( pod = vrefer(9) )
This is a wrong assumption, because they both are not fields, but a field an other thing.
If you really need to do that task through SQL, I'll suggest you to check native SQL sentences like SUBSTRING and check if you can manage to use them within an EXEC_SQL or (better) the CL_SQL* classes.
I have DB in Postgresql 12 and PgAdmin 4 and a lot of queries like:
update public.register set address = replace(address,'Á','A') where address like '%Á%';
update public.register set address = replace(address,'Â','A') where address like '%Â%';
update public.register set address = replace(address,'Ã','A') where address like '%Ã%';
update public.register set address = replace(address,'Ä','A') where address like '%Ä%';
update public.register set address = replace(address,'Å','A') where address like '%Å%';
I want to declare arrays like this:
SET array1 = ARRAY['Á','Â','Ã','Ä','Å]
SET array2 = ARRAY['A','A','A','A','A']
and make a loop just like:
for(i=0; i<count(array1[]); i++){
update public.register set address = replace(address,array1[i],array2[i]) where address like '%array1[i]%';
}
I have not found any good and working idea on forums.
Thanks for any info about this :)
You don't need a loop. This can be done using a single UPDATE statement using regexp_replace()
update register
set address = regexp_replace(address, '[ÁÂÃÄÅ]', 'A', 'g')
where address ~ '[ÁÂÃÄÅ]';
'[ÁÂÃÄÅ]' matches each character in the list. The 'g' option will replace all occurrences in the value.
The WHERE clause then makes sure that only those rows that contain these characters in the address column are changed.
It would work without the WHERE as well, as the regexp_replace() will not change the address if the characters aren't contained. But it's good coding practice to only update those rows that do actually change.
Another option is to install the unaccent extension, then you can use:
update register
set address = unaccent(address)
where address <> unaccent(address);
This has the additional benefit, that you can use language specific rules if you want.
so I'm building a SCD type 2 in snowflake, but it ignores the where clause in which is comparision between "to_timestamp" and "expiry_date". Expiry_date is a variable that is set to '9999-08-17 07:31:29.901000000' (as infinity) and To_timestamp is a column in table. I want to query only the rows that have to_timestamp set to infinity (they are still active) but snowflake seems to ignore this part of where clause. Below is some of the code (it should update the rows that are expired - that means change their "to_timestamp" to current time. and it does but it does to rows with timestamps of all kind - it ignores last line)
SET EXPIRY_DATE_NTZ = '9999-08-17 07:31:29.901000000';
SET CURRENT_DATE_NTZ = TO_TIMESTAMP_NTZ(CURRENT_TIMESTAMP());
UPDATE CUSTOMER_TARGET CT
SET CT.TO_TIMESTAMP = $CURRENT_DATE_NTZ
FROM POC.SNOWFLAKE_POC.CUSTOMER_STAGE CS
WHERE CT.C_CUSTOMER_ID = CS.C_CUSTOMER_ID
AND (CT.C_FIRST_NAME <> CS.C_FIRST_NAME OR CT.C_LAST_NAME <> CS.C_LAST_NAME OR CT.C_BIRTH_YEAR
<> CS.C_BIRTH_YEAR OR CT.C_BIRTH_COUNTRY <> CS.C_BIRTH_COUNTRY OR CT.C_LAST_REVIEW_DATE<>CS.C_LAST_REVIEW_DATE)
AND CT.TO_TIMESTAMP = $EXPIRY_DATE_NTZ;
I have two of these update statements (one for updates and one for deletes) and a merge statement for inserts. And it ignores the comparision in every single one, updating the rows that have "to_timestamp" set to something like "2021-08-24 07:11:53.510000000". I've tried every combination possible (between ... and ..., >= ... <=, <=, >=, comparing in "case" statement of update,...) - nothing. What could be the cause/solution?
As we do not know the structure of CUSTOMER_TARGET I would suggest to explicitly set the data type of EXPIRY_DATE_NTZ variable to match the column data type:
SET EXPIRY_DATE_NTZ = '9999-08-17 07:31:29.901000000';
SELECT $EXPIRY_DATE_NTZ;
DESCRIBE RESULT LAST_QUERY_ID();
to:
-- TIMESTAMP_NTZ as an example
SET EXPIRY_DATE_NTZ = '9999-08-17 07:31:29.901000000'::TIMESTAMP_NTZ;
SELECT $EXPIRY_DATE_NTZ;
DESCRIBE RESULT LAST_QUERY_ID();
By doing that way there are no "implicit conversions" involved in the process.
Another advice is usage of IS DISTINCT FROM instead of <>. IS DISTINCT FROM is NULL safe, which is important if columns are defined as nullable.
UPDATE CUSTOMER_TARGET CT
SET CT.TO_TIMESTAMP = $CURRENT_DATE_NTZ
FROM POC.SNOWFLAKE_POC.CUSTOMER_STAGE CS
WHERE CT.C_CUSTOMER_ID = CS.C_CUSTOMER_ID
AND (CT.C_FIRST_NAME IS DISTINCT FROM CS.C_FIRST_NAME
OR CT.C_LAST_NAME IS DISTINCT FROM CS.C_LAST_NAME
OR CT.C_BIRTH_YEAR IS DISTINCT FROM CS.C_BIRTH_YEAR
OR CT.C_BIRTH_COUNTRY IS DISTINCT FROM CS.C_BIRTH_COUNTRY
OR CT.C_LAST_REVIEW_DATE IS DISTINCT FROM CS.C_LAST_REVIEW_DATE)
AND CT.TO_TIMESTAMP = $EXPIRY_DATE_NTZ;
Your SQL does not have any issues with the filters (ORs are surrounded by the brackets etc). I assume that you have checked the execution profile, and did not see your filter (CT.TO_TIMESTAMP = '9999-08-17 07:31:29.901000000'). In this case, all rows in the target table should have this value in the column TO_TIMESTAMP.
I highly recommend you check the data first. If you are running multiple UPDATE/MERGE commands, you may miss that the data has already updated with this value.
I want to change the query to return multiply values in extra_fields, how can I change the regex? Also I don't understand what extra_fields is - is it a field? If so why it is not called with the table prefix like i.extra_fields?
SELECT i.*,
CASE WHEN i.modified = 0 THEN i.created ELSE i.modified END AS lastChanged,
c.name AS categoryname,
c.id AS categoryid,
c.alias AS categoryalias,
c.params AS categoryparams
FROM #__k2_items AS i
LEFT JOIN #__k2_categories AS c ON c.id = i.catid
WHERE i.published = 1
AND i.access IN(1,1)
AND i.trash = 0
AND c.published = 1
AND c.access IN(1,1)
AND c.trash = 0
AND (i.publish_up = '0000-00-00 00:00:00'
OR i.publish_up <= '2013-06-12 22:45:19'
)
AND (i.publish_down = '0000-00-00 00:00:00'
OR i.publish_down >= '2013-06-12 22:45:19'
)
AND extra_fields REGEXP BINARY '(.*{"id":"2","value":\["[^\"]*1[^\"]*","[^\"]*2[^\"]*","[^\"]*3[^\"]*"\]}.*)'
ORDER BY i.id DESC
The extra_fields is a column of the #__k2_items table. The table qualifier can be omitted, because it is not ambiguous in this query. The column is JSON encoded. That is a serialization format used to store information which is not searchable by design. Applying a RegExp may work one day, but fail another day, since there is no guarantee for id preceeding value (as in your example).
The right way
The right way to filter this is to ignore the extra_fields condition in the SQL query an evaluate in the resultset instead. Example:
$rows = $db->loadObjectList('id');
foreach ($rows as $id => $row) {
$extra_fields = json_decode($row->extra_fields);
if ($extra_fields->id != 2) {
unset($rows[$id]);
}
}
The short way
If you can't change the database layout (which is true for extensions you want to keep updateable), you must split the condition into two, because there is no guarantee for a certain order of the subfields. For some reason, one day value may occur before id. So change your query to
...
AND extra_fields LIKE '%"id":"2"%'
AND extra_fields REGEXP BINARY '"value":\[("[^\"]*[123][^\"]*",?)+\]'
Prepare an intermediate table to hold the contents of extra_fields. Each extra_fields field will be converted into a series of records. Then do a join.
Create a trigger and cronjob to keep the temp table in sync.
Another way is to write UDF in Perl that will decode the field, but AFAIK it is not indexable in mysql.
Using an external search engine is out of scope.
Ok, i didnt want to change the db strucure, i gost some help and changed the regex intoAND extra_fields REGEXP BINARY '(.*{"id":"2","value":\[("[^\"]*[123][^\"]*",?)+\]}.*)'
and i got the right resaults
Thanks