Search a table name across multiple databases SQL SERVER 2019 - sql

Question

I have a table, and the table name is AADatatimeBB in DatabaseB.
My SQL service Have multiple databases DatabaseA,DatabaseB,DatabaseC,DatabaseD
If I do not know the table: AADatatimeBB in which Database, how can I search it?
I can use the following query to search the table if I know the table in which Database.
Select the Database Name in the available Database list and run the query
SELECT * FROM INFORMATION_SCHEMA.TABLES
where table_name like '%DATASET%'

Answer 1

With the following query you can retrieve the names of all databases.
SELECT name, database_id, create_date
FROM sys.databases ;
GO
OR-----------------------------------
SELECT *
FROM sys.databases ;
GO
If you want the names of tables in a database, you can use the following query
USE master
GO
SELECT *
FROM information_schema.tables
GO
OR----------------------------
USE model
GO
SELECT *
FROM information_schema.tables
GO
OR-----------------------
USE ...
GO
SELECT *
FROM information_schema.tables
GO
The following code retrieves all databases and returns all tables of each database in a while loop.
Declare #tempTable Table
(
name varchar(100)
)
--Container to Insert records in the inner select for final output
Insert into #tempTable
SELECT name
FROM sys.databases
-- Keep track of #tempTable record processing
Declare #name varchar(100)
Declare #SQL VarChar(1000)
While((Select Count(*) From #tempTable)>0)
Begin
Set #name=(Select Top 1 name From #tempTable)
--get all db tables
SELECT #SQL = 'USE ' + QUOTENAME(#name) + ' SELECT * FROM information_schema.tables'
Exec (#SQL)
Delete #tempTable Where name=#name
End
If you want to use SQL LIKE Operator, follow the code below
SELECT #SQL = 'USE ' + QUOTENAME(#name) + ' SELECT * FROM information_schema.tables WHERE table_name LIKE ''%a%'''