I have a table with duplicate records.
Upon googling, I stumbled upon this one: How to delete duplicate rows without unique identifier.
So I followed the solution to use the ctid.
However, running it returns an error for me:
SQL Error [42703]: ERROR: column "ctid" does not exist in t2
this is the code I ran:
update my_schema.my_table
set control_flag = 'deleted'
where customer_id = 'A001'
and date between '2019-10-30' and '2020-09-29'
and mrr = 69
and exists (select ctid, 1
from my_schema.my_table t2
where t2.gateway_id = my_schema.my_table.gateway_id and
t2.gateway_item_id = my_schema.my_table.gateway_item_id and
t2.customer_id = my_schema.my_table.customer_id and
t2.mrr = my_schema.my_table.mrr and
t2.date = my_schema.my_table.date and
t2.ctid > my_schema.my_table.ctid
);
Related
Am getting below error in Postgres while executing insert and delete queries. I have around 50 inserts and 50 delete statements. When executed an getting the error as,
SQL Error: ERROR: not all tokens processed
The error is not consistent all the time,
For example,
My 20th delete statement is getting failed
Next time when the same queries are executed, 25th delete statement is getting failed
And when those statements are executed alone, there is no failure.
Not sure if it is a database load issue or infrastructure related issue.
Any suggestion would be helpful
Below is the query,
WITH del_table_1 AS
(
delete from table_1 where to_date('01-'||col1,'DD-mm-YYYY') < current_date-1
RETURNING *
)
update control_table set deleted_count = cnt, status = 'Completed',
update_user_id = 'User', update_datetime = current_date from
(select 'Table1' as table_name, count(*) as cnt from del_table_1) aa
where
control_table.table_name = aa.table_name
and control_table.table_name = 'Table1'
and control_table.status = 'Pending';
I am trying to update data in Table: local.import_payments from Table: local.payments based on update and Inner Join queries. The query I used:
Update local.import_payments
Set local.import_payments.client_id = local.payments.payment_for_client__record_id,
local.import_payments.client_name = local.payments.payment_for_client__company_name,
local.import_payments.customer_id = local.payments.customer__record_id,
local.import_payments.customer_name = local.payment_from_customer,
local.import_payments.payment_id = local.payments.payment_id
From local.import_payments
Inner Join local.payments
Where local.payments.copy_to_imported_payments = 'true'
The client_id, client_name, customer_id, customer_name in the local.import_payments need to get updated with the values from the table local.payments based on the condition that the field copy_to_imported_payments is checked.
I am getting a syntax error while executing the query. I tried a couple of things, but they did not work. Can anyone look over the queries and let me know where the issue is
Try the following
UPDATE local.import_payments
Set local.import_payments.client_id =
local.payments.payment_for_client__record_id,
local.import_payments.client_name =
local.payments.payment_for_client__company_name,
local.import_payments.customer_id = local.payments.customer__record_id,
local.import_payments.customer_name = local.payment_from_customer,
local.import_payments.payment_id = local.payments.payment_id
FROM local.payments as lpay
WHERE lpay.<<field>> = local.import_payments.<<field>>
AND local.payments.copy_to_imported_payments = 'true'
You shouldn't to specify the schema/table for updated columns, only column names:
Do not include the table's name in the specification of a target column — for example, UPDATE table_name SET table_name.col = 1 is invalid.
from the doc
You shouldn't to use the updating table in the from clause except of the case of self-join.
You can to make your query shorter using "column-list syntax".
update local.import_payments as target
set (
client_id,
client_name,
customer_id,
customer_name,
payment_id) = (
source.payment_for_client__record_id,
source.payment_for_client__company_name,
source.customer__record_id,
source.payment_from_customer,
source.payment_id)
from local.payments as source
where
<join condition> and
source.copy_to_imported_payments = 'true'
This is the MySQL query, now I need this below dynamic query to execute in TERADATA SQL.
set l_sql=concat('SELECT max(',l_rid_col,'), MAX(cid) INTO #c2, #c3 FROM ',p_database,'.',p_table);
SET l_rid = #c2;
SET l_cid = #c3;
And this update query:
update table_a
set row = ifnull(l_rid, 0),
column = ifnull(l_cid, 0)
where databasename = p_database
and tablename = p_table;
But In Teradata I tried this way:
update table_a as a
from (select max(l_rid) TR, MAX(l_cid) TCC
from DEVP.employees) as b
set a.row = b.TR, a.column = b.TCC
where a.databasename = 'DEVP'
and a.tablename = 'employees';
Please remove the alias name from the LHS of the update statement.
a.colA=b.colname should be colA=b.colname
I got the answer:
update table_a from (select max(l_rid) TR, MAX(l_cid) TCC from DEVP.employees )as b
set row= b.TR , column=b.TCC where databasename='DEVP' and tablename='employees';
ISSUE: I just removed the alias name in UPDATE. finally got it.
I have History table and transaction table.....and reference table...
If status in reference table is CLOSE then take those record verify in History table if not there insert from transaction table..... wiring query like this .... checking better one... please advice.. this query can be used for huge data ?
INSERT INTO LIB1.HIST_TBL
( SELECT R.ACCT, R.STATUS, R.DATE FROM
LIB2.HIST_TBL R JOIN LIB1.REF_TBL C
ON R.ACCT = C.ACCT WHERE C.STATUS = '5'
AND R.ACCT NOT IN
(SELECT ACTNO FROM LIB1.HIST_TBL)) ;
If you're on a current release of DB2 for i, take a look at the MERGE statement
MERGE INTO hist_tbl H
USING (SELECT * FROM ref_tbl R
WHERE r.status = 'S')
ON h.actno = r.actno
WHEN NOT MATCHED THEN
INSERT (actno,histcol2, histcol3) VALUES (r.actno,r.refcol2,r.refcol3)
--if needed
WHEN MATCHED
UPDATE SET (actno,histcol2, histcol3) = (r.actno,r.refcol2,r.refcol3)
I have a issue where I want to update a column in a table and with a trigger to update same column but in another table. It says I cannot insert NULL but I can't seem to understand from where it gets that NULL value. This is the trigger:
CREATE TRIGGER Custom_WF_Update_WF_DefinitionSteps_DefinitionId ON WF.Definition
AFTER UPDATE AS BEGIN
IF UPDATE(DefinitionId)
IF TRIGGER_NESTLEVEL() < 2
BEGIN
ALTER TABLE WF.DefinitionSteps NOCHECK CONSTRAINT ALL
UPDATE WF.DefinitionSteps
SET DefinitionId =
(SELECT i.DefinitionId
FROM inserted i,
deleted d
WHERE WF.DefinitionSteps.DefinitionId = d.DefinitionId
AND i.oldPkCol = d.DefinitionId)
WHERE WF.DefinitionSteps.DefinitionId IN
(SELECT DefinitionId FROM deleted)
ALTER TABLE WF.DefinitionSteps CHECK CONSTRAINT ALL
END
END
This update statement works just fine:
UPDATE [CCHMergeIntermediate].[WF].[Definition]
SET DefinitionId = source.DefinitionId + 445
FROM [CCHMergeIntermediate].[WF].[Definition] source
But this one fails:
UPDATE [CCHMergeIntermediate].[WF].[Definition]
SET DefinitionId = target.DefinitionId
FROM [CCHMergeIntermediate].[WF].[Definition] source
INNER JOIN [centralq3].[WF].[Definition] target
ON (((source.Name = target.Name) OR (source.Name IS NULL AND target.Name IS NULL)))
I get the following error:
Msg 515, Level 16, State 2, Procedure Custom_WF_Update_WF_DefinitionSteps_DefinitionId, Line 7
Cannot insert the value NULL into column 'DefinitionId', table 'CCHMergeIntermediate.WF.DefinitionSteps'; column does not allow nulls. UPDATE fails.
If I do a select instead of the update statement, like this:
SELECT source.DefinitionId, target.DefinitionId
FROM [CCHMergeIntermediate].[WF].[Definition] source
INNER JOIN [centralq3].[WF].[Definition] target
ON (((source.Name = target.Name) OR (source.Name IS NULL AND target.Name IS NULL)))
I get this result:
http://i.stack.imgur.com/3cZsM.png (sorry for external link, I don't have enaugh reputation to post image here )
What am I doing wrong? What I don't see? What am I missing..?
The problem was in the trigger at the condition. I modified the second where from i.oldPkCol = d.DefinitionId to i.oldPkCol = **d.oldPkCol** and it worked.
UPDATE WF.DefinitionSteps
SET DefinitionId =
(SELECT i.DefinitionId
FROM inserted i,
deleted d
WHERE WF.DefinitionSteps.DefinitionId = d.DefinitionId
AND i.oldPkCol = **d.oldPkCol**)
WHERE WF.DefinitionSteps.DefinitionId IN
(SELECT DefinitionId FROM deleted)