I'm trying to figure out how to run an INSERT (i guess update?) query to insert into rows which are nested, but latter rows also have a nested schema in themselves.
For instance i have something like
What would a general template query look like?
I know that for the lines it would look something like
Managed to solve it with:
UPDATE test
SET lines=ARRAY(
SELECT line FROM UNNEST(lines) AS line
UNION ALL
SELECT (
'::someValue::,
ARRAY<STRUCT<STRING,STRING,FLOAT64>>[('someId','someString',1.0)]
)
WHERE id='someId'
Related
Here's the end result of what I'm trying to do, because I think that I'm making it needlessly complicated.
I want to query data where UPC_ID IN (VERY LONG LIST OF UPCS). Like, 20k lines.
I thought that perhaps the easiest way to do this would be to create a temporary table, and insert the lines 1000 at a time (and then use that table for the WHERE condition.)
When I try to run
CREATE TABLE #TEMP_ITEM (UPC_ID BIGINT NOT NULL)
I get
[PARSE_SYNTAX_ERROR] Syntax error at or near '#'line 1, pos 13
The list of UPCs comes from a spreadsheet, and there's no shared attributes where I can just SELECT INTO or generate the list using anything that already exists in the database.
I know that I'm missing something painfully stupid here, but I am stuck. Help?
You are almost there...
I hope this is in Databricks....
Basically we cannot insert directly, but you can simulate it with the output of an insert statement...
create
or replace temporary view TEMP_ITEM as
select
1 as UPC_ID
UNION
select
2 as UPC_ID
...
...
Please refer to the below link for further details...
Is it possible to insert into temporary table in spark?
Hope this helps...
I have been running into trouble executing SQL code in VBA Access when I refer to certain Table names.
For example,
INSERT INTO TempTable (ClientName) SELECT DISTINCT 1_1_xlsx.ClientName FROM 1_1_xlsx'<--does not work
The code works fine when I changed the Table name from 1_1_xlsx to Stuff.
INSERT INTO TempTable (ClientName) SELECT DISTINCT Stuff.ClientName FROM Stuff '<--works
I have no idea why the first query results in a syntax error and the second code is runs fine even when they refer to the same thing. I suspect it should be the naming conventions but I could not find any concrete answers.
Also, are there any ways that I could use 1_1_xlsx as my table name? Or am I just writing my query wrong?
try this:
INSERT INTO TempTable (ClientName) SELECT DISTINCT [1_1_xlsx].ClientName FROM [1_1_xlsx]
In many SQL based databases you can't have a table name or field name that starts with a number.
I suspect this is the underlying reason for your problem. Although Access will allow it, I have seen it cause problems in the past.
The problem is the number at the beginning of the table name. That is bad -- because it confuses the parser.
This is a bad table name, but SQL allows you to define table aliases. And, in this case, you don't even need to repeat the table name. So, here are two simple solutions:
INSERT INTO TempTable (ClientName)
SELECT DISTINCT ClientName
FROM 1_1_xlsx;
Or:
INSERT INTO TempTable (ClientName)
SELECT DISTINCT t.ClientName
FROM 1_1_xlsx as t
There is no reason to use the complete table name as an alias. That just makes the query harder to write and to read.
I want to write a update SQL statement, but one conidtion of this statement is the result from a select SQL statement, and I also want to return the result of the select SQL statement.
Like this: update ... set ... where id = (select id from ...)
I want to return the value of id back.
Does anybody know how should I do this?
Thanks in advance!
I don't believe that's possible in one statement. Update then query (select) the new value, or query the value first, and then submit an update.
Alternative would be a stored procedure on the database, which executes the multiple queries and returns the result for you.
This is not possible in all Java database frameworks that I know. Probably you need to separate your query and update in Java.
I don't see any problem in using a subselect in a WHERE clause of an update statement.
For the second request, getting back the value of id, I know this is possible in DB2, and maybe others implement that syntax too:
SELECT id FROM FINAL TABLE (
update ... set ... where id = (select id from ...)
)
This works also for INSERT and DELETE statements. (See the documentation.)
Update statements won't return the updated datasets. The select in that case would be a subselect that isn't directly accessible.
You'd thus have to use at least two queries:
select the ids you want
call the update query passing the previously selected ids as a parameter
I'm trying to run the following query against an Oracle DB, but the query is returning 0 records:
select * from TABLE
where upper(FIELD) like '%SEE COMMENT%'
I know this field contains many records with 'See Comment" in it. For example, here is one of the records:
=if(and(Robust_Mean>=20,Robust_Mean<=70),.03*(Robust_Mean+29),
if(Robust_Mean>70,.083*(Robust_Mean^.9),"See Comment"))
I am guessing that the quotation marks in the field are messing the query up, but im not sure how to get around it. Any suggestions?
This works for me:
create table testLike (aCol varchar2(500) );
INSERT INTO TESTLIKE VALUES('abc');
insert into testLike values('=if(and(Robust_Mean>=20,Robust_Mean<=70),.03*(Robust_Mean+29),
if(Robust_Mean>70,.083*(Robust_Mean^.9),"See Comment"))');
SELECT *
FROM TESTLIKE TL
WHERE upper(tl.acol) like '%SEE COMMENT%';
can you recreate?
edit:
in your query try this:
select * from TABLE
WHERE UPPER(FIELD) = '=if(and(Robust_Mean>=20,Robust_Mean<=70),.03*(Robust_Mean+29),
if(Robust_Mean>70,.083*(Robust_Mean^.9),"See Comment"))';
see if that comes up with any results
Just realized there were two similarly named fields in this table, and I was choosing the wrong one.
This question already has answers here:
SQL IN Clause 1000 item limit
(5 answers)
Closed 8 years ago.
I have an SQL statement where I would like to get data of 1200 ep_codes by making use of IN clause. When I include more than 1000 ep_codes inside IN clause, Oracle says I'm not allowed to do that. To overcome this, I tried to change the SQL code as follows:
SELECT period, ...
FROM my_view
WHERE period = '200912'
...
AND ep_codes IN (...1000 ep_codes...)
OR ep_codes IN (...200 ep_codes...)
The code was executed succesfully but the results are strange (calculation results are fetched for all periods, not just for 200912, which is not what I want). Is it appropriate to do that using OR between IN clauses or should I execute two separate codes as one with 1000 and the other with 200 ep_codes?
Pascal Martin's solution worked perfectly. Thanks all who contributed with valuable suggestions.
The recommended way to handle this in Oracle is to create a Temporary Table, write the values into this, and then join to this. Using dynamically created IN clauses means the query optimizer does a 'hard parse' of every query.
create global temporary table LOOKUP
(
ID NUMBER
) on commit delete rows;
-- Do a batch insert from your application to populate this table
insert into lookup(id) values (?)
-- join to it
select foo from bar where code in (select id from lookup)
Not sure that using so many values in a IN() is that good, actually -- especially for performances.
When you say "the results are strange", maybe this is because a problem with parenthesis ? What if you try this, instead of what you proposed :
SELECT ...
FROM ...
WHERE ...
AND (
ep_codes IN (...1000 ep_codes...)
OR ep_codes IN (...200 ep_codes...)
)
Does it make the results less strange ?
Actually you can use collections/multisets here. You'll need a number table type to store them.
CREATE TYPE NUMBER_TABLE AS TABLE OF NUMBER;
...
SELECT *
FROM my_view
WHERE period MEMBER OF NUMBER_TABLE(1,2,3...10000)
Read more about multisets here:
Seems like it would be a better idea, both for performance and maintainability, to put the codes in a separate table.
SELECT ...
FROM ...
WHERE ...
AND ep_code in (select code from ep_code_table)
could you insert the 1200 ep_code values into a temporary table and then INNER JOIN to that table to filter rows instead?
SELECT a.*
FROM mytable a
INNER JOIN tmp ON (tmp.ep_code = a.ep_code)
WHERE ...