sql multiple selects from same table code example

Example 1: sql select merge multiple values

DECLARE @combinedString VARCHAR(MAX)
SELECT @combinedString = COALESCE(@combinedString + ', ', '') + column_name
FROM table_name
WHERE ID = 1234

SELECT @combinedString as StringValue

Example 2: sql select column name like from multiple tables

USE AdventureWorks 
GO 
SELECT t.name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name,
c.name AS column_name
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
WHERE c.name LIKE '%EmployeeID%'
ORDER BY schema_name, table_name;

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