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I'm writing the following SQL query:
SELECT *
FROM OS
WHERE OS.VERSION LIKE '%1%';
In my table there are rows with char 1 in it. However, it returns an empty result.
I changed a little bit the LIKE clause to different values, but it still doesn't work.
What can I do to fix that?
Try double-quotes and * for wildcards. You are using Oracle syntax instead of Access syntax.
LIKE operation can't be used with columns of integer type. I assume that OS.Version is of integer type?
Edit1:
If you are referring to MS Access then you have to do the LIKE with stars (*) instead of %.
Related
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I have a database table that contains a column for pricing.
Its very old, so it was written before i understood datatypes. so we are using varchar for a money value.
Ive noticed some columns have $ in them, so what I'm wondering is... is there a way with SQL Server to perform an update of the table and remove any instances of non numeric characters or at the very least remove the $ from the string in the columns in one go ?
I hope this is possible.
Update tbl
SET price = replace(price, '$', '')
Here is the replace definition
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I have a string like this:
i would like to go to office, and i would like to go to market
My question is: how many times the word like occurs in the string?
Please write a query.
You can use regexp_count:
SELECT REGEXP_COUNT('i like to go , and i would like market', 'like')
FROM DUAL;
The word "like" occurs twice in the string you posted.
The following is a query:
SELECT *
FROM SOME_TABLE
WHERE SOME_VALUE = SOME_OTHER_VALUE
Share and enjoy.
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I am writing a macro which pulls data from Oracle and displays in Excel. In Oracle DB we have a custom table with a column Named "Calculated_Quantity". The datatype of this column is BINARY_DOUBLE.
When I query for this column in Oracle using SQL developer I am able to view the data. However when I write the same query in Excel macro, I get the error as "Data Type is not Supported".
Any suggestions what do I need to do here. If needed I can post my query here.
Thanks,
You should use CAST (or CONVERT for some DBMSs) to convert the data to a supported datatype.
SELECT
CAST(CALCULATED_QUANTITY AS NUMBER(10)) AS Qty
FROM
DW_STG_FSN.SAMPLE
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What does the "s" do at the end of line 8 of this query:
http://www.sqlfiddle.com/#!3/f8816/20/0
I can't find it anywhere and the statement won't work without it.
Thanks!
The s is an alias for the result set which allows it to be referenced within the query.
The readability of a SELECT statement can be improved by giving a table an alias, also known as a correlation name or range variable. A table alias can be assigned either with or without the AS keyword:
table_name AS table alias
table_name table_alias
Using table aliases
The s is a table alias. It gives a name to a table or subquery used in the from clause.
SQL Server requires that all subqueries use aliases. Not all databases do.
I strongly encourage you to use them. They often make queries much more readable.
The data set getting created in the from is given the name 's' (similar to putting "AS s") so you can reference it otherwise in the code. Any data sets being created in a from requires a name be given to it, hence why it only works with the 's'.
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I am having two table A and B of same structure.Both tables is loaded with data.I just want the mismatched row of two tables.,,
I'm certain you could do some gigantic JOIN query for each column and then issue a NOT IN over the result but a simple, pragmatic solution is to:
Write a query that orders the data on several columns (or all)
Export the query executed on each table to a separate text file
Use diff to compare the files with each other
Depending on the RDBMS vendor you may have other options you could consider as well.