I created a table with this schema using sqlite3:
CREATE TABLE monitored_files (file_id INTEGER PRIMARY KEY,file_name VARCHAR(32767),original_relative_dir_path VARCHAR(32767),backupped_relative_dir_path VARCHAR(32767),directory_id INTEGER);
now, I would like to get all the records where original_relative_dir_path is exactly equal to '.', without 's. What I did is this:
select * from monitored_files where original_relative_dir_path='.';
The result is no records even if in the table I have just this record:
1|'P9040479.JPG'|'.'|'.'|1
I read on the web and I see no mistakes in my syntax... I also tried using LIKE '.', but still no results. I'm not an expert of SQL so maybe you can see something wrong?
Thanks!
I see no problem with the statement.
I created the table that you described.
Did an INSERT with the same values that you provided.
And did the query, and also queried without a where clause.
No problems encountered, so I suspect that when you execute your selection, you may not be connected to the correct database.
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.
Actually both tables are the same, and I just need to merge data. Problem is that one column is defined with XML shema, which is same in both tables, and for my query I am getting this error from sql server studio:
"Implicit conversion between XML types constrained by different XML schema collections is not allowed. Use the CONVERT function to run this query."
Help me writedown this query.
I have something like this:
INSERT INTO table1
SELECT * FROM table2
WHERE id NOT IN (select id from table1);
Without more info on your table structure and the xml schemas I'm not sure how much assistance I can be. That said there's an article that discusses this exact problem here
http://sqlblogcasts.com/blogs/martinbell/archive/2010/11/08/Using-XML-Schemas.aspx
And his example of using the convert statement to overcome exactly this problem is as follows.
INSERT INTO [dbo].[Test_ProductModel_Content]( [CatalogDescription] )
SELECT CONVERT(XML, [CatalogDescription] )
FROM AdventureWorks2008.Production.ProductModel
WHERE [CatalogDescription] IS NOT NULL ;
GO
Hope that helps, if not post more information and I'm sure someone can help you out.
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.
I have a table in informix (Version 11.50.UC4) called NextRecordID with just one column called id and it will have one row. What I want to do is copy this value into another table. But don't want my query to fail if this table does not exist. Something like
if table NextRecordID exists
then insert into sometable values ('NextRecordID', (select id from NextRecordID))
else insert into sometable values ('NextRecordID', 1)
I ended up using the below SQL query. Its not ANSI SQL but works the informix server I am using.
insert into sometable values ('NextRecordID',
select case (select 1 from systables where tabname='nextrecordid')
when 1 then (select nextid from nextrecordid)
else (select 1 from systables where tabname='systables') end
from systables where tabname='systables');
What is happening here is within insert query I get the value to be inserted by using select query. Now that select query is interesting. It uses case statement of Informix. I have written a select query to check if the table nextrecordid exists in systables and return 1 if it exists. If this query returns 1, I query the table nextrecordid for the value or else I wrote a query to return the default value 1. This work for me.
You should be able to do this by checking the systables table.
Thank you for including server version information - it makes answering your question easier.
You've not indicated which language(s) you are using.
Normally, though, you design a program to expect a certain schema (certain tables to be present), and then fail - preferably under control - if those tables are not present. Also, it is not clear whether you would get into problems because of repeated execution of the second INSERT statement. Nor is it clear when the NextRecordID table is updated - presumably, once the value has been used, it must be updated.
You should look at SERIAL (BIGSERIAL) and see whether that is appropriate for you.
You should also look at whether a SEQUENCE would be appropriate to use here - it certainly looks rather like it might be applicable.
As Adam Hughes points out, if you want to check whether the NextRecordID table is present in the database, you would look in the systables table. Be aware, though, that your search will need to be against an all lower-case name (nextrecordid).
Also, MODE ANSI databases complicate life - you have to worry about the table's owner (because there could be multiple tables called nextrecordid in a MODE ANSI database). Most likely, you don't have to worry about that - any more than you are likely to have to worry about delimited identifiers for table "someone"."NextRecordID" (which is a different table from someone.NextRecordID).