Interbase/Firebird的SQL语法(收藏)

一、分页写法小例：
SELECT FIRST 10 templateid,code,name from template ;
SELECT FIRST 10 SKIP 10 templateid,code,name from template ;
SELECT * from shop ROWS 1 TO 10;   –firebird2.0支持这种写法
 
二、显示表名和表结构
SHOW TABLES;
SHOW TABLE tablename;
四、更新字段注释
UPDATE RDB$RELATION_FIELDS
SET RDB$DESCRIPTION = ‘描述信息’
WHERE (RDB$RELATION_NAME = ‘SHOP’)
AND (RDB$FIELD_NAME = ‘CREDIT_BUY’)
 
五、显示字段注释
SELECT RDB$FIELD_NAME,RDB$DESCRIPTION
from RDB$RELATION_FIELDS
WHERE (RDB$RELATION_NAME = ‘SHOP’)
AND (DB$FIELD_NAME = ‘CREDIT_BUY’)
 
六、更新表注释
UPDATE RDB$RELATIONS
SET RDB$DESCRIPTION = ‘描述信息’
WHERE RDB$RELATION_NAME = ‘TABLE_NAME’;
 
七、查询所有的表和视图（包括系统表和系统视图）
SELECT RDB$RELATION_NAME
from RDB$RELATIONS;
 
八、查询所有的用户表和用户视图
SELECT RDB$RELATION_NAME
from RDB$RELATIONS
WHERE RDB$SYSTEM_FLAG = 0;
 
九、查询所有的用户表
SELECT RDB$RELATION_NAME
from RDB$RELATIONS
WHERE RDB$SYSTEM_FLAG = 0
AND RDB$VIEW_BLR IS NULL;
 
十、查所有用户表、用户视图所有字段及相关定义
SELECT
a.RDB$RELATION_NAME,
b.RDB$FIELD_NAME,
b.RDB$FIELD_ID,
d.RDB$TYPE_NAME,
c.RDB$FIELD_LENGTH,
c.RDB$FIELD_SCALE
from RDB$RELATIONS a
INNER JOIN RDB$RELATION_FIELDS b
ON a.RDB$RELATION_NAME = b.RDB$RELATION_NAME
INNER JOIN RDB$FIELDS c
ON b.RDB$FIELD_SOURCE = c.RDB$FIELD_NAME
INNER JOIN RDB$TYPES d
ON c.RDB$FIELD_TYPE = d.RDB$TYPE
WHERE a.RDB$SYSTEM_FLAG = 0
AND d.RDB$FIELD_NAME = ‘RDB$FIELD_TYPE’
ORDER BY a.RDB$RELATION_NAME, b.RDB$FIELD_ID;
 
十一、查找某表的所有字段及相关定义
SELECT
A.RDB$FIELD_NAME,
B.RDB$FIELD_TYPE,
B.RDB$FIELD_LENGTH,
B.RDB$FIELD_PRECISION,
B.RDB$FIELD_SCALE
from RDB$RELATION_FIELDS A, RDB$FIELDS B
WHERE A.RDB$RELATION_NAME = ‘tablename’
AND A.RDB$FIELD_SOURCE = B.RDB$FIELD_NAME
ORDER BY A.RDB$FIELD_POS