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I have two databases one in PostgreSQL and other in MySQL. What I want is to get data from both databases and create a view and then iterate it on front-end.
Is it possible?.
The smartest thing to do would be to create two connections, one to each database, and handle it that way.
If you need to join the tables, you could consider using a mysql_fdw foreign table in PostgreSQL and join the tables in PostgreSQL.
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I am trying to convert CREATE UNIQUE INDEX from DB2 to mysql . I just want to know how to use INCLUDE in MySQL queries .I have searched in MySQL document and i din;t find anything .
This is the sample DB2 query :
CREATE UNIQUE INDEX SAMPLE ON MY_TABLE(ID)
INCLUDE(FIELD_1, FIELD_2, FIELD_3, FIELD_4) COMPRESS NO ALLOW REVERSE SCANS#
and also i want to know COMPRESS NO ALLOW REVERSE SCANS is allowed in MySQL ? Any help or suggestion ?
The answer is very simple: none of these options are supported in mysql and there is no equivalent option either. Db2 and mysql are two different products, they work differently.
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How many records can be possible & how many maximum records can be effective in mysql?
Actually my table has
24 Tables
1000000 Rows in Table (Each table (max))
Can I use mysql, please help me to solve my problem.
Yes you can use mysql perfectly.
One million rows (AKA records) is not too much for mysql, if you index that.
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Im curious what is the distinct use of pivot table in database? I mean, how is it apply in real life.
Pivot query help us to generate an interactive table that quickly combines and compares large amounts of data. We can rotate its rows and columns to see different summaries of the source data, and we can display the details for areas of interest at a glance. It also help us to generate Multidimensional reporting.
for more information visit:
http://www.codeproject.com/Tips/500811/Simple-Way-To-Use-Pivot-In-SQL-Query
https://technet.microsoft.com/en-us/library/ms177410(v=sql.105).aspx
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I had a table named table1 and have a three column.. column1, column2,column3..
I want to view the value of my columns in table using VIEW statement not SELECT is it possible?
Thank in advance#
No. View is a SQL database concept. You will have to use SELECT... to create a query, which is essentially the same thing. MSAccess has no concept of Views, it uses Queries.
A view is an SQL query that has been given a name and stored in the database. That is exactly what the Access queries are.
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I have several databases represents the companies we work.
In every database there are fields which we work on.
And in the fields area, there are field infos and our engineer who worked at that field.
I need to search all databases and filter with engineer names, to get a list of fields he worked.
I hope I could explain.
Any simple solution?
Nope. You're going to have to manually write queries to search each table in each database. The whole idea of database schemas and tables is that they are distinct wrappers for data, which can't be implicitly joined.