Suppose that I want to execute two query one is-
select * from table1;
select * from table2;
if I want to execute it I need to remove one query from two then I can execute, I'm using mysql query browser1.2.12.
If we use script tab then I can not see the output, is there any way to execute one of query from multiple query after selection.
that functionality is not available in mysql query browser on any version.
Mysql Query Browser is getting old nowdays. Mysql launch the new generation IDE with name Mysql Workbench.
use it,here u got more options.
enjoy!!
click here for workbench
Related
I selected a table in mysql workbench by running a query like:
select * from table1
From the results grid I made some updates to the result. However, when I run the query again non of my updates are there anymore?
Is it possible to add or edit result from MySQL Workbench?
after edit the row press on apply Then apply the script on the DataBase
I am trying to select from one database using condition in another but my problem is how to do this in my editor i used this code in my phpmyadmin environment and it work fine, but how will write same query in my source code,my problem here is how to connect to two different db in one statement
select * from users.message where sender in( select id from secured.reg_users)
As long as the 2 databases are in the same mysql server, the above query will work with a single connection. (Remember, phpmyadmin will connect to a single database as well at any point of time!) If not, then you can experiment with federated tables, but most likely you will not be able to do this in sql only.
In the latter case, your code needs to retrieve the list of ids from the secured.reg_users table, then use that list as parameter to the main query.
I use SQL tab in phpMyAdmin to test statements, but some queries does not work, like, USE query; But, for example, after running USE statement and then using USE DATABASE() to check, null value returned.
USE dbname;
USE dbname
USE `dbname`;
I want to be able to run SQL statements on specific database; and this is possible after selecting (after using USE statement) database. I can click on the database name on the left sidebar and then run SQL statements, I know; But why is not possible to use "USE" statement to select database directly?
The USE statement doesn't return anything. This is why you are seeing null. It is functioning correctly.
USE sets the connection to use the database in the statement for future statements.
I am using MySQL Query Browser 1.2.17. My problem is that using EXACTLY the same query sometimes I get No database selected error.
I tried to find any dependence in using USE database; or FROM database.table.
I have no idea when will I get an error and when I won't and if I get I don't know how to solve this (since there is in the query USE database;).
UPDATE AND SOLUTION:
Since the problem was independent neither on the USE database; nor FROM database.table and has been observed RANDOMLY (ex. run query, it works, then immediately run again with the same query and it didn't work anymore), I recreated the database simply filling it with data from backup and it helped.
Best practice to write query.
databasename.tablename
example
SELECT * FROM database.table where 1 = 1
I managed to connect to MySQL DB via Sql Developer following this guide. MySQL DB shows and I can expolre tables via the navigator. However, I could not run SELECT statement to show any of these tables. In MySQL workbench I used to use :
use [database_name]
Then, run select statement in that database. But in Sql developer, I am not sure what should I add to the statement to make it work. I have tried the following:
select *
from [table_name].[database_name];
It does not work. I found this tutorial, but nothing is mentioned about simple select statement. Any help is deeply appreciated.
AFAIK, except MySQL specific commands; all other standard SQL commands like SELECT,INSERT,UPDATE,DELETE should work just fine using SQL Developer. but per your posted query, it looks total strange.
Your query
select * from [table_name]#[database_name];
remove that # sign.
you should qualify like database_name.table_name.
Unless it's a typo, remove those [] as well from your query
statement.
Your query should look like
select * from database_name.table_name;
You can always write your SQL including database as well, in the form of:
database.tablename
such as:
select * from wordpressdb.usertable where username="someone"