读sql server 表结构
EXEC sp_help pt_task
SELECT COLUMN_NAME,
DATA_TYPE,
CHARACTER_MAXIMUM_LENGTH,
NUMERIC_PRECISION,
NUMERIC_SCALE,
IS_NULLABLE,
COLUMNPROPERTY(OBJECT_ID(TABLE_NAME), COLUMN_NAME, 'IsIdentity') AS IS_AUTOINCREMENT,
COLUMN_DEFAULT
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'pt_task'
ORDER BY ORDINAL_POSITION
