We have a requirement to query data from each configuration. Although I can access this data from Opportunity/Quote Tracker-->Configuration, I can't seem to query this. Which table should I query?
The data for the Product Configurator is stored in the Erp.PcInValue table.
This is an EAV (Entity, Attribute, Value) table and has one value stored in each row.
Related
I am trying to create an ecommerce application using laravel, So when someone orders something, I store data in orders table, in which a column "products" exists.
I store json object in this column.
this is products json:
[{"pid":65,"min_price":"349.0000"},{"pid":71,"min_price":"349.0000"}]
Now, I want to show these order details to the user profile. So, i need to fetch rows from an another table (products), with the primary key same as "pid" in given json object.
please, suggest me how to resolve it.
You can't do this without retrieving it first and looping over it or something.
What you might want to consider is the following:
Remove the column products from the orders table and create a order_product table. This is called a pivot table.
You can create this table by running the command php artisan create:migration CreateOrderProductTable
Now in this table you define 2 foreign keys. order_id and product_id.
If you have done this, you have to create the relations in the Product model and the Order model.
You can now use this relation to query all products that an order has like this: Order::find(1)->products()->get()
I am new to HDFS/HIVE. Need some advice. I have a background of RDBMS Data modelling.
I have a requirement of a daily report. The report requires fetching of data from two staging Tables(HIVE).
What if I create a table in HIVE, write a view to fetch records from staging to populate HIVE table. create a HIVE view pointing to HIVE table with where clause of selecting one-day data?
HIVE staging tables ---> 2. View to populate HIVE table --> 3. HIVE table ----> 4. View to fetch data from HIVE table created in 3.
what if I create a view on top of two staging HIVE tables (joining two tables with where clause to fetch one-day data)?
HIVE staging tables ---> 2. View to fetch data from HIVE staging tables
I want to know HIVE best practice and solution strategies.
View or not View but you need ETL process to load tables. ETL process can join, aggregate, etc, so you will be able use finally joined and aggregated data in the form star/snowflake or report table. Why do you need Views here? To reuse some common queries, to reduce complexity of some long complex queries, make interfaces to data, create logical entities, etc. You do not necessarily need View simply to join tables and load data to another table. All depends on your requirements. If reports should query data fast then data should be precalculated by ETL process. View is just wrapper over query, it will be calculated each time you query data.
I think its best if you have zero views, 1 single table, and make your partition the date field (but you can't partition on the date, so you have to store it as a string) ... this make it easier for the end user to have only 1 table... fewer tables.
This gives your users the ability to engage only the latest date they want, or leverage the full table.
I am trying to load the tables into oracle in-memory database. I have enable the tables for INMEMORY by using sql+ command ALTER TABLE table_name INMEMORY. The table also contains data i.e. the table is populated. But when I try to use the command SELECT v.owner, v.segment_name name, v.populate_status status from v$im_segments v;, it shows no rows selected.
What can be the problem?
Have you considered this?
https://docs.oracle.com/database/121/CNCPT/memory.htm#GUID-DF723C06-62FE-4E5A-8BE0-0703695A7886
Population of the IM Column Store in Response to Queries
Setting the INMEMORY attribute on an object means that this object is a candidate for population in the IM column store, not that the database immediately populates the object in memory.
By default (INMEMORY PRIORITY is set to NONE), the database delays population of a table in the IM column store until the database considers it useful. When the INMEMORY attribute is set for an object, the database may choose not to materialize all columns when the database determines that the memory is better used elsewhere. Also, the IM column store may populate a subset of columns from a table.
You probably need to run a select against the date first
I'm new to both Oracle and Informatica.
Currently working on a small task where I need to select all records from the source table, filter the results to get only records where field1='Y' and finally insert new rows into the target table that contains only src.field2 and src.field3 values.
These 2 fields are used for the PK and for the Index of the target table.
So i get an error in Informatica:
"ORA-26002: Table has index defined upon it"
I rather not dropping the index? is there a work around?
I've tried alter index to "unusable" but I got the same error.
Please advice.
Thanks.
Try to use Normal load mode instead of Bulk. You can set in session properties for the target.
I got two schema A and B. In A there is a table 'company' and in B there is a table 'newcompany'. Now I need all the data which is residing on A.company to be updated on B.newcompany whenever there is some data updation on A.company.
Please help me out with a query or some function which implements this functionality.
You could give grants to the user and simply access the table as B.newcompany inside an onupdate trigger for the A.company table.