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Find a specific column in an unknown table in a database?

Tags:

mysql

I am trying to locate a specific column that is unknown in a database with 125 tables. I am looking for a wildcard, say, "%watcher%". Is this possible?

like image 205
Jon Weinraub Avatar asked Feb 01 '26 13:02

Jon Weinraub


2 Answers

SELECT TABLE_NAME, COLUMN_NAME, DATA_TYPE, IS_NULLABLE, COLUMN_DEFAULT
  FROM INFORMATION_SCHEMA.COLUMNS
 WHERE column_name LIKE '%watcher%'
[AND table_schema = 'database']
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ChssPly76 Avatar answered Feb 04 '26 01:02

ChssPly76


This shows you a bit more info...

DECLARE @columnName as varchar(100)
SET @columnName = 'ColumnName'

SELECT t.name AS Table, c.name AS Column,
ty.name AS Type, c.max_length AS Length, c.precision AS Precision
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
INNER JOIN sys.types ty ON c.system_type_id = ty.system_type_id
WHERE c.name LIKE @columnName
ORDER BY t.name, c.name

Hope it helps!

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Mauro Bilotti Avatar answered Feb 04 '26 03:02

Mauro Bilotti



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