IS there a way to find common misspellings in sql server?For example, if I had a legitimate search… like “Forclosure” instead of “Foreclosure”, is there a way to find the connection within a table without doing LIKE or CASE WHEN?
I’m not 100% sure it will work but you can try experimenting with SOUNDEX function and see if it can give you any results.
SOUNDEX converts an alphanumeric string to a four-character code that is based on how the string sounds when spoken.
For example:
SELECT SOUNDEX ('Smith'), SOUNDEX ('Smythe');
Gives same results for both
Related
Using SQL I would like to know if its possible to do the following:
If I have a variable that the user inputs mutiple strings into seperated by a comma for example ('aa','bbb','c','dfd'), is it possible using LIKE with a wilcard at the end of each string in stead of having the user to enter each variations in multiple macros.
So say if user was looking for employee numbers that start with ('F','E','C') is it possible without using OR statements is the question I guess am asking?
It would be similar to that of an array I guess
No, LIKE is its own operator and therefore needs separated by an OR.
You might prefer ILIKE to LIKE, as it is a case-insensitive comparison.
You can also try to use REGEXP_LIKE, which is similar to what you want, except you'll have to use regex expressions instead of 'FEC%'
That depends on your SQL dialect; I don't know Impala at all, but other SQL engines have support for regular expressions in string matches, so that you can build a query string like
SELECT fld FROM tbl WHERE fld REGEXP '^[FEC].*$';
No matter what you do, you will need to build a query from your user's input. Passing through user input unprocessed into your SQL processor is a big "nope" anyways, from a "don't accidentally delete a table" point of view:
I'm a bit lost.
I've had a look at the documentation but I'm not sure if you can use LIKE and pattern match in Big Query the same as SSMS.
The code shown here works in SSMS but the results are not correct in Big Query, so was wondering if there was another way to do it.
WHERE column_name NOT LIKE '[a-Z]%'
I'm looking to return strings which contain special characters or numerics.
Use REGEXP_CONTAINS instead
where not regexp_contains(column_name, r'[a-zA-Z]')
Meantime, LIKE is also supported as a comparison operator
Oracle has a function called translate that can be used to replace individual characters of the string by others, in the same order that they appear. It is different than the replace function, which replaces the entire second argument occurence by the entire third argument.
translate('1tech23', '123', '456'); --would return '4tech56'
translate('222tech', '2ec', '3it'); --would return '333tith'
I need this to implement a search on a SQLite database ignoring accents (brazilian portuguese language) on my query string. The data in the table that will be queried could be with or without accents, so, depending on how the user type the query string, the results would be different.
Example:
Searching for "maçã", the user could type "maca", "maça", "macã" or "maçã", and the data in the table could also be in one of the four possibilities.
Using oracle, I would only use this:
Select Name, Id
From Fruits
Where Translate(Name, 'ãç','ac') = Translate(:QueryString, 'ãç','ac')
... and these other character substitutions:
áéíóúÁÉÍÓÚàèìòùÀÈÌÒÙãõÃÕäëïöüÄËÏÖÜâêîôûÂÊÎÔÛñÑçÇ
by:
aeiouAEIOUaeiouAEIOUaoAOaeiouAEIOUaeiouAEIOUnNcC
Of course I could nest several calls to Replace, but this wouldn't be a good choice.
Thanks in advance by some help.
Open-source Oracle functions for SQLite have been written at Kansas State University. They include translate() (full UTF-8 support, by the way) and can be found here.
I don't believe there is anything in sqlite that will translate text in a single pass as you describe.
This wouldn't be difficult to implement as a user defined function however. Here is a decent starting reference.
I used replace
REPLACE(string,pattern,replacement)
https://www.sqlitetutorial.net/sqlite-replace-function/
I have a situation where the name column comprises of many special characters. I have a solution where I do Like with all the special characters mentioned like this '%[''",/#$!-#%^&*.\+-]%'`
But this I think is not a good way to solve the problem. Is there a way where I can use Regular Expression within SQL query itself for checking if the name column contains special characters or not. Special characters would be everything apart from alphabets and numbers.
I know Regex can be used with C# and T-SQL. Looking for something if can be done through native SQL
You can use
WHERE yourcolumn LIKE '%[^0-9a-zA-Z]%' COLLATE Latin1_General_BIN
http://msdn.microsoft.com/en-us/magazine/cc163473.aspx
I am trying to use sql pattern matching to check if a string value is in the correct format.
The string code should have the correct format of:
alphanumericvalue.alphanumericvalue
Therefore, the following are valid codes:
D0030.2190
C0052.1925
A0025.2013
And the following are invalid codes:
D0030
.2190
C0052.
A0025.2013.
A0025.2013.2013
So far I have the following SQL IF clause to check that the string is correct:
IF #vchAccountNumber LIKE '_%._%[^.]'
I believe that the "_%" part checks for 1 or more characters. Therefore, this statement checks for one or more characters, followed by a "." character, followed by one or more characters and checking that the final character is not a ".".
It seems that this would work for all combinations except for the following format which the IF clause allows as a valid code:
A0025.2013.2013
I'm having trouble correcting this IF clause to allow it to treat this format as incorrect. Can anybody help me to correct this?
Thank you.
This stackoverflow question mentions using word-boundaries: [[:<:]] and [[:>:]] for whole word matches. You might be able to use this since you don't have spaces in your code.
This is ANSI SQL solution
This LIKE expression will find any pattern not alphanumeric.alphanumeric. So NOT LIKE find only this that match as you wish:
IF #vchAccountNumber NOT LIKE '%[^A-Z0-9].[^A-Z0-9]%'
However, based on your examples, you can use this...
LIKE '[A-Z][0-9][0-9][0-9][0-9].[0-9][0-9][0-9][0-9]'
...or one like this if you 5 alphas, dot, 4 alphas
LIKE '[A-Z0-9][A-Z0-9][A-Z0-9][A-Z0-9][A-Z0-9].[A-Z0-9][A-Z0-9][A-Z0-9][A-Z0-9]'
The 2nd one is slightly more obvious for fixed length values. The 1st one is slighty less intuitive but works with variable length code either side of the dot.
Other SO questions Creating a Function in SQL Server with a Phone Number as a parameter and returns a Random Number and Best equivalent for IsInteger in SQL Server