I'm trying to work on my data management project for my class but I am having trouble importing data on the server.
P.S.: I'm using H2 Console
CREATE TABLE SERVES AS SELECT * FROM CSVREAD ('C:/Users/H/Downloads/SERVES.csv’);
Error:
CREATE TABLE SERVES AS SELECT * FROM CSVREAD
('C:/Users/H/Downloads/SERVES.csv’);; Syntax error in SQL statement
"CREATE TABLE SERVES AS SELECT * FROM CSVREAD
([*]'C:/Users/H/Downloads/SERVES.csv’);"; SQL statement: CREATE TABLE
SERVES AS SELECT * FROM CSVREAD ('C:/Users/H/Downloads/SERVES.csv’);
[42000-181] 42000/42000 (Help)
You have used the wrong kind of quote character to end the string literal. You have used ’ instead of '. So instead of:
'C:/Users/H/Downloads/SERVES.csv’
use
'C:/Users/H/Downloads/SERVES.csv'
The very last character is slightly different.
Related
I'm connected to a database that contains a table named "document", this term is also an sql term at the same time so when I query it, it doesn't recognize it.
I'm used to just add some quotation marks to query it in dbeaver and it works well.
select * from "document"`
But when I want to write my query in PowerBi to import this table, it doesn't work with the quotation marks.
I also tried it in this format:
select * from public.document
Or I tried to don't write any sql query and just select it when I connect to the odbc database, but at the moment of update, the process starts and doesn't stop.
If the table really has double quotes in its name, one of these should work:
Using backtick
select * from `"document"`
Using double quote as escape:
select * from ""document""
i have a table whose name is like. But whenever i have to select data from like, i was getting this error, i figured it out public.like..but when i try to join two tables
SELECT *
FROM frame
INNER JOIN public.like
ON like.takerId = frame.likeId;
i get this error
ERROR: syntax error at or near "."
LINE 4: ON like.takerId = frame.likeId;
i also use public prefix but it throws
ERROR: column like.takerid does not exist
LINE 4: ON public.like.takerId = frame.likeId;
^
HINT: Perhaps you meant to reference the column "like.takerId".
even if it is saying column like.takerid does not exist , then why it gives me HINT: Perhaps you meant to reference the column "like.takerId". I dont know, i think it is problem with like table name, like is a sql syntax, and it assumes like and a sql syntax and throwing me error. Should I change my table name? Or is there any way to make sql case sensetive or how can i tell sql to ignore like. public.like is not working for joining table.
As like is a reserved keyword, you need to use double quotes for each occurance of it (unless it's prefixed with the schema name as you found out)
SELECT *
FROM frame
JOIN public.like ON "like".takerId = frame.likeId;
Or
SELECT *
FROM frame
JOIN "like" ON "like".takerId = frame.likeId;
Or use an alias
SELECT *
FROM frame f
JOIN "like" l ON l.takerId = f.likeId;
But in the long run you should find a different name for the table that does not require quoting.
You should definitely chose another name for your table. LIKE is a reserved command, and it is considered a bad practice to use it, although possible by using ", e.g.
CREATE TABLE public."like" (id int);
INSERT INTO public."like" VALUES (42);
SELECT * FROM "public.like"
EDIT: As pointed out by #a_horse_with_no_name, specifying a schema in temporary tables won't work (check db<>fiddle), so only the table name should be between double quotes as corrected in the snippet above. For temporary tables just omit the schema:
CREATE TEMPORARY TABLE "like" (id int);
INSERT INTO "like" VALUES (42);
SELECT * FROM "like"
Demo: db<>fiddle
I am trying to search for information on this topic in sql but search is not showing me results.
SELECT * FROM TABLE(package/procedure/function);
Which topic does the above sql statement come under? Can I have a link to a doc?
The TABLE collection expression is described here in the Oracle documentation.
In short, it is used to convert a collection or pipelined function into a table that can be queried by a SELECT statement.
Typically, the collection must be of a datatype that is defined at the database level (i.e. a datatype that was created by a create or replace type ... statement).
e.g.
select *
from table(sample_pkg.func_that_rtrns_array);
I am trying to select a single column in my data table using raw SQL in a postgresql database from the psql command line. I am getting an error message that says the column does not exist. Then it gives me a hint to use the exact column that I referenced in the select statement. Here is the query:
SELECT insider_app_ownershipdocument.transactionDate FROM insider_app_ownershipdocument;
Here is the error message:
ERROR: column insider_app_ownershipdocument.transactiondate does not exist
SELECT insider_app_ownershipdocument.transactionDate FROM in...
HINT: Perhaps you meant to reference the column "insider_app_ownershipdocument.transactionDate".
I have no idea why this is not working.
(Postgres) SQL converts names automatically to lower case although it support case-sensitive names. So
SELECT insider_app_ownershipdocument.transactionDate FROM insider_app_ownershipdocument;
will be aquivalent to:
SELECT insider_app_ownershipdocument.transactiondate FROM insider_app_ownershipdocument;
You should protect the column name with double quotes to avoid this effect:
SELECT insider_app_ownershipdocument."transactionDate" FROM insider_app_ownershipdocument;
We can write select column1,column2 into #temp from tableName in SQL Server. But I am unable to write the same query in an Oracle database.
I want to store the result of select/insert/delete/update or any result set into a local temporary table in oracle database. How I can do this?
I am executing below query in my Oracle sql developer tool:
select * into #temp
from bmi;
but I am getting the error as follow please help to find this error.
when I execute the same query in Microsoft SQL Server it get executed & #temp table get created which is not present in the database but it can hold the data for that particular session. so i want same scenario in ORACLE database.
ORA-00911: invalid character
00911. 00000 - "invalid character"
*Cause: identifiers may not start with any ASCII character other than
letters and numbers. $#_ are also allowed after the first
character. Identifiers enclosed by doublequotes may contain
any character other than a doublequote. Alternative quotes
(q'#...#') cannot use spaces, tabs, or carriage returns as
delimiters. For all other contexts, consult the SQL Language
Reference Manual.
*Action:
Error at Line: 1 Column: 15
I want to store the result of select/insert/delete/update or any result set into a local temporary table in oracle database,How I can Do This?
You can't. Oracle doesn't have local temporary tables, it doesn't work like that. But it doesn't need to. Oracle has a very different internal model from SQL Server which means a lot of SQL Server practices are unnecessary in Oracle. (To be fair SQL Server has neat things which Oracle doesn't, like ANSI 92 Joins for DML.)
The key insight is: you don't want to store the result of select/insert/delete/update or any result set into a local temporary table. That is something you had to do in T-SQL to achieve the end goal of implementing some business logic. But what you actually wanted to do in SQL Server and what you want to do in Oracle is write some code which delivers value to your organisation.
So, with that mindset in place, what do you need to do?
If you want to loop round a result set then perhaps a Cursor Loop is what you're looking for?
for rec in ( select * from some_table
where the_date = date '2018-02-01' )
loop
...
If you want to work on some data prior to inserting it into a data then perhaps you should use a PL/SQL collection:
type l_recs is table of some_table%rowtype;
But maybe you just need to understand Oracle's Transaction Management model. A lot of things are possible in pure SQL without any need for procedural framework.
Create temporary table :
create global temporary table
results_temp (column1, column2)
on commit preserve rows;
and then insert to it from your table:
insert into results_temp (column1, column2 )
SELECT column1,column2
FROM source_table
create global temporary table temp_table_name
on commit preserve rows as select column1,column2,columnN from your_table;