Sometimes you need to bind multimple query then you can use unionAll in laravel If you use union all then laravel query builder provide unionAll method for mysql union when you are doing big project or ERP level project then mostly you require to use union for getting data from database with multi
In this post i want to show you how to use subquery with join in laravel query builder Whenever you need to use subquery in your laravel project you can use following example and learn hot to use subquery In bellow example you can see we add subquery using DBraw DBraw throught we can sele
Sometimes you need to bind multimple query then you can use unionAll in laravel If you use union all then laravel query builder provide unionAll method for mysql union when you are doing big project or ERP level project then mostly you require to use union for getting data from database with multi
As the winter in the Northern hemisphere is giving way to spring, slowly but surely, blog posts are blooming in the gardens of Oracle, SQL Server and MySQL. This Log Buffer plucks some of them for your reading pleasure.
Oracle:
Providing A Persistent Data Volume to EMC XtremIO Using ClusterHQ Flocker, Docker And Marathon
There is sliced bread in SQL.
Oracle Cloud – Your service is suspended due to exceeding resource quota !
EM12c Compliance ‘Required Data Available’ flag – Understanding and Troubleshooting
…
[Read more](Update: Forge auto-magically redirects cron job output to a job specific file, which means my cronjob below doesn't quite do what is expected. I've written a new post about how this affects this strategy because it made more sense than trying to correct/update this one.)
Shifting gears for a second, let’s chat about backups. I’m using Laravel Forge to run deployments on top of Linode servers. Both are ah-may-zing!
Now that I’ve got some data piling up in my MySQL databases, I thought it wise to start backing up my few machines. Linode has a terrific, no-frills backup service …
[Read more]We are glad to announce that one of our most popular tutorials has just been updated and is available here. In this tutorial, we cover how HAProxy works, and how to deploy, configure and manage HAProxy in conjunction with MySQL using ClusterControl.
Applications typically connect to a database cluster or replicated setup by opening connections on one of the database nodes in order to run transactions. If the database node fails, the client would need to reconnect to another database node before it can continue to serve requests. There are database drive that supports connection pooling, load balancing and failover e.g. Connector/J and PHP MySQL native driver for master slave. However, in other clustering setup like Galera Cluster for MySQL or MariaDB, the JDBC and PHP drivers are not aware of internal Galera state information, and …
[Read more]Sometimes you require to create scroll table and header must be fixed in your website or project You can do it easily I show you two example of scrolling table with fixed header and you can see and implement in your website Lets see first example strongExample 1strongpre classcode lan
Hello, I followed your instruction step by step; but I am getting
the following error
select “col5” from “demo”@MySQL;
*
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned
this message:
ORA-02063: preceding line from MYSQL
My environment : Centos 7, Oracle xe 11.2.0,
I created a public database link;
[root@localhost trace]# isql -v demo
+—————————————+
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
+—————————————+
SQL>
Any help would be greatly appreciated.
Thank you
First I will say what the comment syntax is for various vendors' dialects. Then I will get specific about some matters that specifically affect MySQL or MariaDB.
Syntax Table
Standard | YES | YES | NO | YES | NO |
Oracle 12c | YES | YES | NO | NO | YES |
DB2 | YES | YES | NO | …
Once again it’s time for another EXPLAIN FORMAT=JSON is cool! post. This post will discuss how EXPLAIN FORMAT=JSON allows the nested_loop command to make the JOIN operation hierarchy transparent.
The regular
EXPLAIN
command lists each table that participates in a
JOIN
operation on a single row. This works perfectly for simple queries:
mysql> explain select * from employees join titles join salariesG *************************** 1. row *************************** id: 1 select_type: SIMPLE table: employees partitions: NULL type: ALL possible_keys: NULL key: NULL key_len: …[Read more]