I am not able to get a clear complete understanding regarding the role of transactions in databases. I know operations clubbed in a transactions will be executed together and then either committed or …
Tag: mysql
Use select statement as the limit to the outer select statement
Looking to get the top half of a table, I set a select statement that returns an integer as the limit to the outer select statement and got a syntax error. I checked and ran the select statements …
Why does MYSQL Sleep(x) go on forever?
I have a basic SQL query However, when I run it, it just goes on forever until it reaches a timeout message. I have already tried and it still goes on forever. There are no error messages, the request just goes on forever. Answer You have it to use it like this or Then it will wait 5 Secondes between
Check available letters in the middle of word SQL
can someone help me with the next issue. I have words database and I need to check availability of the next letters for substring in the middle of word. For example I have few words which have ‘gr’ in …
SQL Query joins tables and returns all records with dynamic id
I have two tables: staffs and teams. Here are their properties: # Staffs Table id | name 1 | john 2 | bob 3 | alex 4 | george # Teams Table id | name | supervisor_id 1 | a-team 1 …
Join query with null values
I have this query SELECT * FROM orders, products, suppliers WHERE product_id=products.id AND `geleverd` = 1 AND supplier_id=suppliers.id It works fine except that when the suppliers_id is …
Find which array an item is in given multiple arrays and item only exists in one in PHP/SQL
I have an ecommerce website and I have it set up that countries are split into different zones for shipping costs. I have 8 zones, these are all arrays of country codes, there can be no duplicates in …
SQL Query for records
I want to write a SQL query to get problem solution given below – I have a table something like this: CREATE TABLE order ( id INT, name VARCHAR(255), income INT, order_date DATE ) …
MySQL selecting rows that are not in grouping
I have the following MySQL table of sample data: create table prices ( id INTEGER PRIMARY KEY AUTO_INCREMENT, store_id INTEGER NOT NULL, item INTEGER NOT NULL, price FLOAT …
all values not displaying from SQL data table in PHP
I am trying to display all my data from MySQL to PHP like the following, but only 1 data is being displayed
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