I have a table in which I need to change the values of a couple of columns in multiple rows.
The table with values to be changed is like:
The code I have tried containing updated values, with no success, is:
UPDATE <table_name>
SET (IDENTIFIER_1, IDENTIFIER_2)
VALUES (1635, 1755),
(2024, 2199),
(1868, 1692),
(3577, 4825)
WHERE ID
IN ('1',
'23',
'54',
'21');
To be honest, I am not sure if this is even supported in db2 SQL. The error is:
[Error Code: -104, SQL State: 42601] DB2 SQL Error: SQLCODE=-104, SQLSTATE=42601, SQLERRMC=update *
I should also advise that I am a db2 newbie.
You can always use Merge
MERGE INTO TABLE1
USING (
VALUES (1,1635, 1755),
(23,2024, 2199),
(54,1868, 1692) ) dummytable(ID_T, INF1,INF2)
on table1.id_table = dummytable.id_t
when matched
then UPDATE set TABLE1.IDENTIFIER_1 = dummytable.INF1
, TABLE1.IDENTIFIER_2 = dummytable.INF2
else ignore
Related
I am using DB2 LUW and want to a assign a result of a With clause to a variable in a stored procedure.
I got the exception
{0:0} An unexpected token "AS" was found following "l = (WITH BASE". Expected tokens may include: "JOIN".. SQLCODE=-104, SQLSTATE=42601, DRIVER=4.28.11
Is it possible to assign the result on this way or should I have to solve it with a cursor?
DECLARE result CLOB(8M);
SET result = (WITH BASE AS (
xxx
)
SELECT JSON_ARRAY (select json_objects FROM ITEMS format json) FROM SYSIBM.SYSDUMMY1);
Use instead the syntax style:
with ctename AS ( ... ) SELECT ... INTO ... FROM ctename;
I can select(in Oracle) from postgers with dblink, and its work fine.
But if i create procedure with this select:
Procedure:
`CREATE OR REPLACE PROCEDURE test_merge as
begin
MERGE INTO CARDS C
USING (SELECT c."card_id", 1, n."channel"
FROM "table_1"#DBLINK_NAME n
JOIN
"table_2"#DBLINK_NAME c
ON n."card_id" = c."id"
WHERE n."type" = 'param1') B
ON (C.CARDID = B."card_id")
WHEN MATCHED
THEN
UPDATE SET C.SENDR = 1, C.PHONE = '+' || B."channel";
end;`
ORA-04052: error occurred when looking up remote object postgres.table_name#DBLINK_NAME ORA-00604: error occurred at recursive SQL level 1 ORA-28500: connection from ORACLE to a non-Oracle system return this message: ERROR: relation "postgres.card" does
Have any idea?
Oracle 11g
Thanks!
It was necessary to specify the owner of the database on postgre. In my case, it was enough to specify "public". in the procedure. before accessing tables.
"public"."table_1"#DBLINK_NAME
I created a temporary table with sqlalchemy (with an underlying postgres database) that is going to be joined with a database table. However, in some cases when a value is empty '' then postgres throws the error:
failed to find conversion function from unknown to text
SqlAlchemy assembles everything to the following context
[SQL: 'WITH temp_table AS \n(SELECT %(param_1)s AS id, %(param_2)s AS email, %(param_3)s AS phone)\n SELECT campaigns_contact.id, campaigns_contact.email, campaigns_contact.phone \nFROM campaigns_contact JOIN temp_table ON temp_table.id = campaigns_contact.id AND temp_table.email = campaigns_contact.email AND temp_table.phone = campaigns_contact.phone'] [parameters: {'param_1': 83, 'param_2': '', 'param_3': '+1234567890'}]
I assemble the temporary table as follows
stmts = []
for row in import_data:
row_values = [literal(row[value]).label(value) for value in values]
stmts.append(select(row_values))
subquery = union_all(*stmts)
subquery = subquery.cte(name="temp_table")
The problem seems to be the part here
...%(param_2)s AS email...
which after replacing the param_2 results in
...'' AS email...
which will cause the error mentioned above.
One way to solve the issue is to perform a cast
...''::text AS email...
However, I don't know how to perform ::text cast with sqlalchemy!?
I'm currently trying to insert data into a database from a text boxes, $enter / $enter2 being where the text is being written.
The database consists of three columns ID, name and nametwo
ID is auto incrementing and works fine
Both statements work fine on their own, but because they are being issued separately the first leaves nametwo blank and the second leaves name blank.
I've tried combining both but haven't had much luck, hope someone can help.
$dbh->do("INSERT INTO $table(name) VALUES ('".$enter."')");
$dbh->do("INSERT INTO $table(nametwo) VALUES ('".$enter2."')");
To paraphrase what others have said:
my $sth = $dbh->prepare("INSERT INTO $table(name,nametwo) values (?,?)");
$sth->execute($enter, $enter2);
So you don't have to worry about quoting.
You should read database manual.
The query should be:
$dbh->do("INSERT INTO $table(name,nametwo) VALUES ('".$enter."', '".$enter2."')");
The SQL syntax is
INSERT INTO MyTable (
name_one,
name_two
) VALUES (
"value_one",
"value_two"
)
Your way of generating SQL statements is very fragile. For example, it will fail if the table name is Values or the value is Jester's.
Solution 1:
$dbh->do("
INSERT INTO ".$dbh->quote_identifier($table_name)."
name_one,
name_two
) VALUES (
".$dbh->quote($value_one).",
".$dbh->quote($value_two)."
)
");
Solution 2: Placeholders
$dbh->do(
" INSERT INTO ".$dbh->quote_identifier($table_name)."
name_one,
name_two
) VALUES (
?, ?
)
",
undef,
$value_one,
$value_two,
);
I have a database in postgreSQL. I want to read some data from there, but I get an error (column anganridref does not exist) when I execute my command.
Here is my NpgsqlCommand:
cmd.CommandText = "select * from angebot,angebotstatus,anrede where anrid=anganridref and anstaid=anganstaidref";
and my 3 tables
the names of my columns are rights. So I don't understand why that error comes. Someone can explain me why it does crash? Its not the problem of large and lowercase.
You are not prefixing your column names in the where clause:
select *
from angebot,
angebotstatus,
anrede
where anrid = anganridref <-- missing tablenames for the columns
and anstaid = anganstaidre
It's also recommended to use an explicit JOIN instead of the old SQL 89 implicit join syntax:
select *
from angebot
join angebotstatus on angebot.aaaa = angebotstatus.bbbb
join anrede on angebot.aaaa = anrede.bbbb