I have written a finder as follows: params[:manufacturer] comes through in a form of a string that has been .parameterized by Rails. The problem is that a string with an “‘” or an “&” in it doesn’t get matched by ILIKE correctly. So as an example, some strings that are …
Fatal error stating “Call to a member function bind_param() on a non-object”
I’ve gotten a fatal error, which I do not know where went wrong. My Category page, and this is my function script for getCategoryArrCon Answer If you have noticed, when you echo your prepared statement, it will look just like this: That simple space is important also in the middle of c.image and FROM to…
LEFT OUTER JOIN on array column with multiple values
I cannot seem to find the trick to join two tables through an array column when one table is not an array value, and the other table’s array value can contain multiple values. It does work when there …
PostgreSQL Foreign Key syntax
I have 2 tables as you will see in my PosgreSQL code below. The first table students has 2 columns, one for student_name and the other student_id which is the Primary Key. In my second table called tests, this has 4 columns, one for subject_id, one for the subject_name, then one for a student with the highest…
What is the difference between LATERAL JOIN and a subquery in PostgreSQL?
Since Postgres came out with the ability to do LATERAL joins, I’ve been reading up on it, since I currently do complex data dumps for my team with lots of inefficient subqueries that make the overall …
Replace [ ] bracket in a string
I have a string that includes brackets, [], around a number. Since this string represents my column names for a SQL database I need to remove/replace them. So far I do it in the following way: It works fine, but it looks ugly for me since I have to do that for [1] to [20]. Is there a way to
How do I list all tables in a schema having specific column in oracle sql?
I have found the list of all tables using this query – But I need to list all the tables having column name starttime_date or starttime. Answer You could use USER_TAB_COLS view. For example, You could try,
How do I use a variable in an SQL script passed in from a powershell script
I’m new to Powershell and getting stuck with some of the syntax. I have a powershell script that calls a SQL script with a variable I want to access inside the script. in my SQL query I want to be able to access the $powerShellVar variable like this However, when I do that, I get this error What am I
the name is not a valid identifier. error in dynamic stored procudure
my stored procudure is : when execute show this error: The name ‘SELECT IDproduct,name_product,first_price,final_price,max_registered_price, date_record_shamsi,final_date_view_shamsi, count_views,image_1,collection_1 from Table_asbabbazi where active=0 AND (name_product LIKE %@name_product%) AND (collec…
How to get second last row from a mysql database?
I just made a query to get second last row from database: Here Is code: SELECT TOP 1 * FROM (select Top 2 * from Categories ORDER BY CategoryID DESC)x ORDER BY CategoryID …