To update child form lookup I need IT resource Key. Is there a SQL query for the same?
select ITRESOURCE_KEY from APP_INSTANCE where APP_INSTANCE_NAME ='<AppInstanceName>'
It resources keys are stored in table of SVR.
SELECT * FROM SVR
Related
I have tables like "operation_log_202001", "operation_log_202002", ...
(I know this table structure and system structure is so bad. But I have to maintain it.)
When I try to access the "user" table, I can connect to the "user" table easily because it doesn't have any variable part in the table name.
I tried to solve this problem as below.
#Query("select * from :table_name limit 20")
Flux<ReviewData> findAll(String table_name);
But the generated query is "select * from 'operation_log_202001' limit 20". I don't wanna it to append "'" to the table name.
May I ask how to solve this problem?
Create a view, you can change it in runtime and can be mapped to an entity.
Elaborate:
A Database stores informations in tables. Those informations can be aggregated into views using custom SQL-queries. Views can act like tables, and inside their aggregation-query you are able to change the query's table-names - this way the table-name is variable.
Try with database name before table name, example :
Select * from db_log.table_name limit 20;
I want to retrieve the column names of a table (e.g., MAIN_ENGINE_DATA), under a specific schema (e.g., APP) using an SQL query.
How can I achieve this in Apache Derby?
Ok, I found the solution. The SQL query would be like:
SELECT COLUMNNAME FROM SYS.SYSCOLUMNS INNER JOIN SYS.SYSTABLES ON SYS.SYSCOLUMNS.REFERENCEID = SYS.SYSTABLES.TABLEID WHERE TABLENAME = 'MAIN_ENGINE_DATA'
I would like to query all the table names that belongs to another database. I can query the contents of a table in another database using oracle links for example: select * from owner.tablename#another_database; but how do I select the owner name and table names of the tables in another database? Thank you.
SELECT * FROM user_tables#another_database;
Hello I am using Oracle 11g. I want to know in which table information about the schemas created is stored ?
You can find information about the users (owners of the schemas) from dba_users.
A more general useful view would be the dba_objects one.
Not exactly what you are looking for, but this query will return the name of the schemas with any object
select distinct owner from dba_objects
We are having few tables with partitions and we don't know how to get the partition keys for a specific table.
How can I get or view the partition key set up in oracle database for a specific table?
You'll find that information here:
select * from USER_PART_TABLES;
select * from USER_PART_KEY_COLUMNS;
Source.
Check out all the below data dictionary views,
ALL_PART_KEY_COLUMNS
DBA_PART_KEY_COLUMNS
USER_PART_KEY_COLUMNS
There is also a view called ALL_SUBPART_KEY_COLUMNS.