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Is there a combination of “LIKE” and “IN” in SQL?
...an use REGEXP_LIKE (available from Oracle version 10 onwards).
An example table:
SQL> create table mytable (something)
2 as
3 select 'blabla' from dual union all
4 select 'notbla' from dual union all
5 select 'ofooof' from dual union all
6 select 'ofofof' from dual union all
7 ...
ALTER TABLE, set null in not null column, PostgreSQL 9.1
I have a table with not null column, How to set a null value in this column as default?
4 Answers
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SQL Call Stored Procedure for each Row without using a cursor
How can one call a stored procedure for each row in a table, where the columns of a row are input parameters to the sp without using a Cursor?
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How to report an error from a SQL Server user-defined function
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For an inline-table-valued-function where the RETURN is a simple select, this alone doesn't work because nothing is returned - not even null, and in my case I wanted to throw an error when nothing was found. I didn't want to break down th...
MySQL get row position in ORDER BY
With the following MySQL table:
9 Answers
9
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Simplest way to do a recursive self-join?
...is the simplest way of doing a recursive self-join in SQL Server? I have a table like this:
5 Answers
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SQL Joins Vs SQL Subqueries (Performance)?
...ies with Semijoin Transformations
Rewriting Subqueries as Joins
I have a table with 50000 elements, the result i was looking for was 739 elements.
My query at first was this:
SELECT p.id,
p.fixedId,
p.azienda_id,
p.categoria_id,
p.linea,
p.tipo,
p.nome
FROM prodotto p
WH...
The necessity of hiding the salt for a hash
...The salt really is there to make it so it isn't possible to form a rainbow table to crack your entire password database in one go if it gets broken into. From that point of view, so long as each salt is unique there is no difference, a brute force attack would be required with your salts or the encr...
How to alter a column's data type in a PostgreSQL table?
...entation here: http://www.postgresql.org/docs/current/interactive/sql-altertable.html
ALTER TABLE tbl_name ALTER COLUMN col_name TYPE varchar (11);
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Pass column name in data.table using variable [duplicate]
In following example, I am creating a data table having column name ‘x’ and ‘v’
1 Answer
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