—–表字段
SELECT NULL AS table_cat,
t.owner AS table_schem,
t.table_name AS table_name,
t.column_name AS column_name,
DECODE (t.data_type, ‘CHAR’, 1, ‘VARCHAR2’, 12, ‘NUMBER’, 3,
‘LONG’, -1, ‘DATE’, 93, ‘RAW’, -3, ‘LONG RAW’, -4,
‘BLOB’, 2004, ‘CLOB’, 2005, ‘BFILE’, -13, ‘FLOAT’, 6,
‘TIMESTAMP(6)’, 93, ‘TIMESTAMP(6) WITH TIME ZONE’, -101,
‘TIMESTAMP(6) WITH LOCAL TIME ZONE’, -102,
‘INTERVAL YEAR(2) TO MONTH’, -103,
‘INTERVAL DAY(2) TO SECOND(6)’, -104,
‘BINARY_FLOAT’, 100, ‘BINARY_DOUBLE’, 101,
1111)
AS data_type,
t.data_type AS type_name,
DECODE (t.data_precision, null, t.data_length, t.data_precision)
AS column_size,
0 AS buffer_length,
t.data_scale AS decimal_digits,
10 AS num_prec_radix,
DECODE (t.nullable, ‘N’, 0, 1) AS nullable,
NULL AS remarks,
t.data_default AS column_def,
0 AS sql_data_type,
0 AS sql_datetime_sub,
t.data_length AS char_octet_length,
t.column_id AS ordinal_position,
DECODE (t.nullable, ‘N’, ‘NO’, ‘YES’) AS is_nullable
FROM all_tab_columns t
WHERE t.owner LIKE ‘TEST’ ESCAPE ‘/’
AND t.table_name LIKE ‘YUGONG_EXAMPLE_ORACLE’ ESCAPE ‘/’
–AND t.column_name LIKE ‘id’ ESCAPE ‘/’

ORDER BY table_schem, table_name, ordinal_position；

—主鍵約束
SELECT NULL AS table_cat,
c.owner AS table_schem,
c.table_name,
c.column_name,
c.position AS key_seq,
c.constraint_name AS pk_name
FROM all_cons_columns c, all_constraints k
WHERE k.constraint_type = ‘P’
AND k.table_name = ‘YUGONG_EXAMPLE_ORACLE’
AND k.owner like ‘TEST’ escape ‘/’
AND k.constraint_name = c.constraint_name
AND k.table_name = c.table_name
AND k.owner = c.owner
ORDER BY column_name