I have a huge mysqldump file (~700GB) that I want to restore on a different server. For the first GBs, the import is quite fast with some MB/s, but after some GB of data, the speed drops to something between…
Assuming that I have 20L records, Approach 1: Hold all 20L records in a single table. Approach 2: Make 20 tables and enter 1L into each. Which is the best method to increase performance and why, or are there any…
So I have a table of 4.7 billion records on which I want to perform a group by count expression in Postgres using PGadmin4. Obviously this is gonna take a lot of time and I want to speed up the…
I need a report of which cars (license plates) are parked in and when. This is an example of my table. id lic_plate datetime lane _________________________________________________ 10 1234-JM 2022-10-07 12:24:33 IN 11 1234-JM 2022-10-07 12:29:57 OUT 12 5678-PC 2022-10-07 15:14:17…
I have this membertype table: | member_id | member_name | |-----------|-------------| | 901 | Liz | | 902 | Margaret | | 903 | Bob | and this revenue table: | GIS_ID | Member_ID | Total_Revenue | Total_Discount | Number_Transaction…
I have a table that looks like this: CREATE TABLE `test_table` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `ref_id` bigint(20) NOT NULL, `count` int(11) DEFAULT NULL, `status` tinyint(4) NOT NULL, `create_timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, `update_timestamp` timestamp NOT NULL DEFAULT…
I am trying to migrate Cassandra cluster onto AWS Keyspaces for Apache Cassandra. After the migration is done how can I verify that the data has been migrated successfully as-is?
I am new to SQL and having a hard time to filter out a table using SQL query. I have a table as below CATEGORY | NAME | UID | LOCATION ------------------------------------------------------------------------ Planning | Test007 | AVnNDZEGp5JaMD | USER Planning…
I am new to postgres and trying to update the columns where the status is either null or new. The below query is validating for NEW but not for empty string/null value. Is there any way to achieve this? update…
How can I Specifies the number of failed login attempts in PostgreSQL before the role or user is locked and unlock after a time that I want? What about blocking IP not user. If I want ban IP after n…