I am very new to SQL and had a query with which I think you might be able to help me
I am trying to make a list of studies whose official_title (in the studies table) includes the keyword 'fibrillation'
I have been trying to write a code in SQL to get such information but have failed to do so, I used the following code -
SELECT * FROM studies
WHERE official_title ILIKE 'fibrillation'
I would appreciate it if you could spare a few minutes to help me out!
Thank you very much!
you can use SQL "like" to check if it contains the string you're looking for
SELECT column1, column2, ...
FROM table_name
WHERE columnN LIKE pattern;
For more information check this
https://www.w3schools.com/sql/sql_like.asp
SELECT * FROM studies
WHERE official_title LIKE '%fibrillation%'
This will work for you. If this is not what you want, let me know.
Related
I'm trying to generate a simple query to find all records in the database (case sensitive), that have an match, but not in the same case.
An example of what I'm trying to find are all instances of the below:
dog
DOG
Dog
Is there any such functionality in SQL to create such a query or if anyone has anything on hand would be appreciated.
You can do something using lower()/upper() function like below
select * from tablename
where lower(columnname)=lower('dog')
OR
select * from tablename
where upper(columnname)=upper('dog')
I want to look for values in variable/column which start with 'S' and has 'gg' in between.
For instance Staggered is a word which starts with alphabet S and has gg in between the word.
so what sql query to write to get the result.
Due to the fact that you did not provide much meta information (which database?), I'll just show the following:
SELECT * FROM <table>
WHERE <columnname> LIKE 'S%gg%';
Good luck :)
As the target database is not mentioned, I will answer with Oracle syntax:
select *
from TABLE_NAME
where COL_NAME like 'S%gg%'
We have an application which indexes data using user-written SQL statements. We place those statements within parenthesis so we can limit that query to a certain criteria. For example:
select * from (select F_Name from table_1)q where ID > 25
Though we have discovered that this format does not function using a Sybase database. Reporting a syntax error around the parenthesis. I've tried playing around on a test instance but haven't been able to find a way to achieve this result. I'm not directly involved in the development and my SQL knowledge is limited. I'm assuming the 'q' is to give the subresult an alias for the application to use.
Does Sybase have a specific syntax? If so, how could this query be adapted for it?
Thanks in advance.
Sybase ASE is case sensitive w.r.t. all identifiers and the query shall work:
as per #HannoBinder query :
select id from ... is not the same as select ID from... so make sure of the case.
Also make sure that the column ID is returned by the Q query in order to be used in where clause .
If the table and column names are in Upper case the following query shall work:
select * from (select F_NAME, ID from TABLE_1) Q where ID > 25
Can someone explain this to me? I have two queries below with their results.
query:
select * from tbl where contains([name], '"*he*" AND "*ca*"')
result-set:
Hertz Car Rental
Hemingyway's Cantina
query:
select * from tbl where contains([name], '"*he*" AND "*ar*"')
result-set:
nothing
The first query is what I would expect, however I would expect the second query to return "Hertz Car Rental". Am I fundamentally misunderstanding how '*' works in full-text searching?
Thanks!
I think SQL Server is interpreting your strings as prefix_terms. The asterisk is not a plain old wildcard specifier. Fulltext and Contains are word oriented. For what you are trying to do, you would be better off using plain old LIKE instead of CONTAINS.
http://msdn.microsoft.com/en-us/library/ms187787.aspx
"*" only works as a suffix. If you use it as a prefix, the table needs to be scanned no matter what and the index is useless. At that point, you might as well do
Select * From Table Where (Name Like '%he%') And (Name Like '%ar%')
I would try replacing * with % to see how it goes.
select * from tbl where contains([name], '"%he%" AND "%ar%"')
I've written an SQL query with a lot of 'or's in the 'where' clause:
i.e.
"SELECT * FROM myTable WHERE col1='a' or col1='b' or col1='c'...etc"
I'm trying to run a query in access via vb.net, but I keep getting "Query is too complex" error message.
I'm guessing I've hit some maximum limit. Anyone know a way around this, other than just to break it down into multiple queries?
How about using the IN operator instead?
SELECT Field1, Field2
FROM Table1
WHERE Field1 IN('Val1','Val2', ....)
If you query is that simple would you not be better using
SELECT * FROM myTable WHERE col1 in ('a','b','c')
but it would help to post the actual query so we can give a accurate answer
You could use SQL IN operator instead having multiple OR conditions.
You can use IN as in -
SELECT * FROM myTable WHERE col1 IN ('a','b','c','d');
Many have stated that you should use the IN-operator instead, but when that is used together with constants I believe the optimiser simply converts that to an OR-operator.
Instead you could load a temporary table with your constants and then use the IN-operator with that table.