I want to search a value in all column of all tables in my database. I have done it before in SQL but I don't know how I can do this in db2.
There is a pretty good (free) SQL tool SQL Workbench which has this functionality
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After a number of DB migration tools failed for me (pgloader, among others) to smoothly migrate my sqlite DB to Postgres, I'm using DataGrip to copy table by table, using the Export feature to generate SQL INSERT statements, then running them in a console. I don't have toooo many tables, so this is OK. The only issue is boolean fields, with SQLlite encodes as 0 and 1, but Postgres wants false and true. What's the best way to alter either the export or import process to fix these boolean values?
Option to select boolean values representation in Export feature is not yet implemented in DataGrip.
Please see and follow DBE-11944.
For a long time I have been working only with Oracle Databases and I haven't had much contact with PostgreSQL.
So now, I have a few questions for people who are closer to Postgres.
Is it possible to create a connection from Postgres to Oracle (oracle_fdw?) and perform selects on views in a different schema than the one you connected to?
Is it possible to create a connection from Postgres to Oracle (oracle_fdw?) and perform inserts on tables in the same schema as the one you connected to?
Ad 1:
Yes, certainly. Just define the foreign table as
CREATE FOREIGN TABLE view_1_r (...) SERVER ...
OPTIONS (table 'VIEW_1', schema 'USERB');
Ad 2:
Yes, certainly. Just define a foreign table on the Oracle table and insert into it. Note that bulk inserts work, but won't perform well, since there will be a round trip between PostgreSQL and Oracle for each row inserted.
Both questions indicate a general confusion between a) the Oracle user that you use to establish the connection and b) the schema of the table or view that you want to access. These things are independent: The latter is determined by the schema option of the foreign table definition, while the former is determined by the user mapping.
I use Azure SQL DB (Single DB, Basic, DTU, Provisioned).
There are two different DBs, say, DB-1 and DB-2.
For DB-1, I have Admin access.
For DB-2, I have read-only access. (No access to create new table.)
The two DBs have no links. I access them using SSMS.
The requirement:
In DB-2, there is a table [EMP] with 1000 rows.
Only 250 of them to be exported and inserted into a new table in DB-1 (with all columns).
How can I achieve in SSMS?
Thanks in advance!
There is no way to do this in only SSMS. If this is an ad-hoc project, I would query the records, copy and paste them into Excel, configure them in Excel for an insert statement, then paste them into an insert statement against DB-1.
If this is something that will need to be sustainable, I'd recommend looking into Azure Data Factory.
I have created a table, but is not listed on DataStudio 4101(tables node)
I can insert data by sql commands and drop/create the table, but can not find it on the server Database Node, under tables.
Other tables are displayed, but not the new ones I made.
IF you are using DB2 for i, with "system naming" mode, then your tables may have been created in schema QGPL (the General Purpose Library) by default. Your DB2 session would find them by using its "library list", similar to a path list.
I am developing a windows application and using Postgres as backend database. At some point in my application i am dynamically creating table e.g Table1, then Table2 and so on. In this way i have many dynamic table in my database. Now i provide a button "Clean Database", so i need to remove all those dynamic tables using SQL query. Should some one guide me how to write SQL Query that automatically delete all such tables?
You should just be able to say
DROP TABLE {tablename}
for each dynamically created table. Try that and see if it works.