1-) MSSQL Athena -  column uzunlugunu ogrenme

 SELECT COL_LENGTH('SGKMES', 'SGKMES_KOD')

veya

SELECT * FROM INFORMATION_SCHEMA.COLUMNS

WHERE TABLE_NAME = 'SGKMES'

veya

SELECT * FROM   INFORMATION_SCHEMA.COLUMNS WHERE  TABLE_NAME = 'SGKMES'   AND COLUMN_NAME = 'SGKMES_DUZ_PCC'