Is it possible to create an index on a column of an Oracle table registered in metadata of SAS Data Integration Studio? If it is, which type of index is created? Simple one or which one?
yes we can create an index on output table of oracle database.After registering the output table you can find the index tab/keys tab .there we can create index(either it may be simple(for simple the index name and column name should be same) and for composite index you can able to choose multiple columns
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How to get the definition of the existing datastore CTXSYS (used for indexing) in oracle?
For example one of a column in table t1 has a context index type with datastore CTXSYS.t1_example_test,
is there any table or any way that can help me to find the definition of "CTXSYS.t1_example_test"?
I just want to know which all columns are included in it.
Is this what you are looking for,
Any text index created can be found in CTXSYS schema as shown below and the indexed column name is in column IDX_TEXT_NAME
select c.idx_name,c.idx_table,c.idx_text_name
from ctxsys.ctx_indexes c
where c.idx_table = <table_name>;
I need to create a sequence whose value is going to be read by call to .NEXTVAL in PL/SQL code and saved in more then one record of a specific table column, so my design doesn't require to define a PK on the aforementioned column.
I cannot find out how to edit the sequence tab in Oracle Data Modeler (I'm on version 4.1.1) when the PK checkbox is not selected (all the sequence related fields are disabled).
Any idea?
In the relational model, choose your DB and within that you will find sequence as an item to create. You can also create other types of object here.
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 want to create a table (lets say table_copy) which has same columns as other table (lets call it table_original) in Oracle database, so the query will be like this :
create table table_copy as (select * from table_original where 1=0);
This will create a table, but the constraints of table_original are not copied to table_copy, so what should be done in this case?
Only NOT NULL constraints are copied using Create Table As Syntax (CTAS). Others should be created manually.
You might however query data dictionary view to see the definitions of constraints and implement them on your new table using PL/SQL.
The other tool that might be helpful is Oracle Data Pump. You could import the table using REMAP_TABLE option specifying the name for the new table.
Use a database tool to extract the DDL needed for the constraints (SQL Developer does the job). Edit the resulting script to match the name of the new class.
Execute the script.
If you need to do this programmatically you can use a statement like this:
DBMS_METADATA.GET_DDL('TABLE','PERSON') from DUAL;
I created a table and one of the columns is address. I then created a view with a WHERE CONTAINS clause that states select can only be performed on address that contain a specific word.
I then created an index of the address column on the original table.
It says index created.
When I type
select * from myview
It says
drg-10599: column is not indexed.
Any idea why this isn't working?
You would need to create an Oracle Text index, not a standard b-tree index. There are quite a few options for creating and maintaining Oracle Text indexes that you should really read through in order to figure out exactly what options you want to use.
The simplest possible DDL statement would be
CREATE INDEX myindex ON table_a(address)
INDEXTYPE IS CTXSYS.CONTEXT;