如何在存储过程中实现创建一个表名不定的TABLE

seongchul 2001-03-01 01:07:00

我在SQL SERVER 中编写一个存储过程,有一个输入变量@Name
在其他操作以后,还要创建一个Table,它的表名为Temp@Name
(比如如果@Name='aa' 则表名为Tempaa;如果@Name='bb' 则表名为Tempbb)
请问各位大虾,如何实现?

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seongchul 2001-03-05

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to playyuer:
我把你上边的代码粘贴到一个新的存储过程中,apply时出现错误:
Incorrect systex near 'Create Table Temptable'

bucher 2001-03-05

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呵呵，来晚了。

playyuer 2001-03-05

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--仅仅是少了一对括号
CREATE PROCEDURE TEMPPR
@DM Varchar(30)
AS
execute ('CREATE TABLE Temptable' + @DM + '(ID TINYINT NOT NULL,NAME VARCHAR(30) NOT NULL)')

playyuer 2001-03-05

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--仅仅是少了一对括号
CREATE PROCEDURE TEMPPR
@DM Varchar(30)
AS
execute ('CREATE TABLE ' + @DM + '(ID TINYINT NOT NULL,NAME VARCHAR(30) NOT NULL)')

bachelor 2001-03-02

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对

playyuer 2001-03-02

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CREATE PROCEDURE TEMPPR
@DM Varchar(30)
AS
execute 'CREATE TABLE TEMPTABLE'+@DM+'(ID TINYINT NOT NULL,NAME VARCHAR(30) NOT NULL)'

seongchul 2001-03-02

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To cxchina:
你的意思是这样吗?:
CREATE PROCEDURE TEMPPR @DM Varchar(30)
AS
CREATE TABLE TEMPTABLE'+@DM+'
(
ID TINYINT NOT NULL,
NAME VARCHAR(30) NOT NULL
)
如果不是,请说明,万"分"感谢

cxchina 2001-03-01

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@Name
exec 'create table Temp'+@Name+' (...)'
即可!

主要介绍了mybatis创建一个或多个新用户 insert 字段和表名不确定时动态添加问题,非常不错，具有参考借鉴价值，需要的朋友可以参考下

DB2应用开发教程-培训文档

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create public synonym 同义词名 for 表名; 16、填加注释 comment on table 表名 is \'注释\'; comment on column 表名.列名 is \'注释\'; 17、分布式数据库,创建数据库链路 create [public] database link LINKNAME [connect to USERNAME identified by PASSWORD] [using \'CONNECT_STRING\'] 可以在服务器端，也可以在客户端建立，但必须注意，两台服务器之间数据库必须可以互访，必须各有各自的别名数据库 18、查看数据库链路 select * from all_db_links; select * from user_db_links; 查询 select * from TABLENAME@DBLNKNAME; 创建远程数据库同义词 create synonym for TABLENAME@DBLNKNAME; 操纵远程数据库记录 insert into TABLENAME@DBLNKNAME (a,b) values (va,vb); update TABLENAME@DBLNKNAME set a=\'this\'; delete from TABLENAME@DBLNKNAME; 怎样执行远程的内嵌过程 begin otherdbpro@to_html(参数); end; 19、数据库链路用户密码有特殊字符的时候，可以用双引号把密码引起来 create public database link dblink1 connect to db1 identified by \"123*456\" using \'db11\' 20.oracle8中扩充了group by rollup和cube的操作。有时候省了你好多功夫的。 <1>下面的语句可以进行总计 select region_code,count(*) from aicbs.acc_woff_notify group by rollup(region_code); <2> 对第1个字段小计，最后合计 select region_code,write_status,count(*) from aicbs.acc_woff_notify group by rollup(region_code,write_status); 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create snapshot snapshot_to_study as select * from TABLE_NAME@to_study; 创建角色 create role aa identified by aaa; 授权 grant create snapshot,alter snapshot to aaa; grant aaa to emp; create snapshot SNAPSHOT_TO_HTML refresh complete start with sysdate next sysdate+5/(24*60*60) as select * from a@to_html; 删除 drop snapshot snap_to_html 手工刷新快照,(调用DBMS_SNAPSHOT包中的refresh过程)DBMS_SNAPSHOT.refresh(snapshot_name,refresh_type); begin DBMS_SNAPSHOT.REFRESH(\'snap_to_html\',\'c\'); end; 对所有快照进行刷新 begin DBMS_SNAPSHOT.REFRESH_ALL; end; 怎样执行远程的内嵌过程 begin otherdbpro@to_html(参数); end; 26、用户管理 create a user: database authentication sql> create user juncky identified by oracle default tablespace users sql> temporary tablespace temp quota 10m on data password expire sql> [account lock|unlock] [profile profilename|default]; <1>.查看当前用户的缺省表空间 SQL>select username,default_tablespace from user_users; <2>生成用户时指定缺省表空间 create user 用户名 identified by 口令 default tablespace 表空间名; <3>重新指定用户的缺省表空间 alter user 用户名 default tablespace 表空间名 <4>查看当前用户的角色 SQL>select * from user_role_privs; 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32 虚拟自段 <1>. 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47.怎么实现一条记录根据条件多表插入 9i以上可以通过Insert all语句完成，仅仅是一个语句，如： INSERT ALL WHEN (id=1) THEN INTO table_1 (id, name) values(id,name) WHEN (id=2) THEN INTO table_2 (id, name) values(id,name) ELSE INTO table_other (id, name) values(id, name) SELECT id,name FROM a; 如果没有条件的话，则完成每个表的插入，如 INSERT ALL INTO table_1 (id, name) values(id,name) INTO table_2 (id, name) values(id,name) INTO table_other (id, name) values(id, name) SELECT id,name FROM a; 48.如何实现行列转换 <1>、固定列数的行列转换如 student subject grade --------------------------- student1 语文 80 student1 数学 70 student1 英语 60 student2 语文 90 student2 数学 80 student2 英语 100 ... 转换为语文数学英语 student1 80 70 60 student2 90 80 100 ... 语句如下： select student,sum(decode(subject,\'语文\', grade,null)) \"语文\", sum(decode(subject,\'数学\', grade,null)) \"数学\", sum(decode(subject,\'英语\', grade,null)) \"英语\" from table group by student <2>、不定列行列转换如 c1 c2 -------------- 1 我 1 是 1 谁 2 知 2 道 3 不 ... 转换为 1 我是谁 2 知道 3 不这一类型的转换必须借助于PL/SQL来完成，这里给一个例子 CREATE OR REPLACE FUNCTION get_c2(tmp_c1 NUMBER) RETURN VARCHAR2 IS Col_c2 VARCHAR2(4000); BEGIN FOR cur IN (SELECT c2 FROM t WHERE c1=tmp_c1) LOOP Col_c2 := Col_c2||cur.c2; END LOOP; Col_c2 := rtrim(Col_c2,1); RETURN Col_c2; END; / SQL> select distinct c1 ,get_c2(c1) cc2 from table;即可 --例子： create table okcai_1 ( user_id varchar2(10), user_number varchar2(10), user_num number(8) ) user_id user_number user_num --------------------- 1 123 2 1 456 5 1 789 6 2 11 2 2 22 3 2 33 4 2 44 5 2 55 6 2 66 7 2 77 8 3 1234 1 3 5678 2 方式一： create or replace function get_col( p_userId number, p_col number ) return varchar as v_tmp varchar2(255); begin select user_number||chr(9)||user_num into v_tmp from (select user_number,user_num,rownum row_id from okcai_1 where user_id = p_userId) a where row_id = p_col; return ltrim(v_tmp); --return v_tmp; end; 然后 select distinct user_id,get_col(user_id,1),get_col(user_id,2),get_col(user_id,3) .... from okcai_1 方式二： create or replace function get_col( p_userId number, p_col number ) return varchar as v_tmp varchar2(255); begin select user_number||chr(9)||user_num into v_tmp from (select user_number,user_num,rownum row_id from okcai_1 where user_id = p_userId) a where row_id = p_col; return ltrim(v_tmp); --return v_tmp; end; select distinct user_id,get_col_new(user_id) from okcai_1; 49.怎么设置存储过程的调用者权限普通存储过程都是所有者权限，如果想设置调用者权限，请参考如下语句 create or replace procedure ...() AUTHID CURRENT_USER As begin ... end; 50.Oracle有哪些常见关键字详细信息可以查看v$reserved_words视图 51.怎么查看数据库参数 <1> show parameter 参数名如通过show parameter spfile可以查看9i是否使用spfile文件其中参数名是可以匹配的。比如show parameter cursor ,则会显示跟cursor相关的参数 <2> select * from v$parameter <3> 除了这部分参数，Oracle还有大量隐含参数，可以通过如下语句查看: SELECT NAME ,VALUE ,decode(isdefault, \'TRUE\',\'Y\',\'N\') as \"Default\" ,decode(ISEM,\'TRUE\',\'Y\',\'N\') as SesMod ,decode(ISYM,\'IMMEDIATE\', \'I\', \'DEFERRED\', \'D\', \'FALSE\', \'N\') as SysMod ,decode(IMOD,\'MODIFIED\',\'U\', \'SYS_MODIFIED\',\'S\',\'N\') as Modified ,decode(IADJ,\'TRUE\',\'Y\',\'N\') as Adjusted ,description FROM ( --GV$SYSTEM_PARAMETER SELECT x.inst_id as instance ,x.indx+1 ,ksppinm as NAME ,ksppity ,ksppstvl as VALUE ,ksppstdf as isdefault ,decode(bitand(ksppiflg/256,1),1,\'TRUE\',\'FALSE\') as ISEM ,decode(bitand(ksppiflg/65536,3), 1,\'IMMEDIATE\',2,\'DEFERRED\',\'FALSE\') as ISYM ,decode(bitand(ksppstvf,7),1,\'MODIFIED\',\'FALSE\') as IMOD ,decode(bitand(ksppstvf,2),2,\'TRUE\',\'FALSE\') as IADJ ,ksppdesc as DESCRIPTION FROM x$ksppi x ,x$ksppsv y WHERE x.indx = y.indx AND substr(ksppinm,1,1) = \'_\' AND x.inst_id = USERENV(\'Instance\') ) ORDER BY NAME 52.怎样建立基于函数索引 8i以上版本，确保 Query_rewrite_enabled=true Query_rewrite_integrity=trusted Compatible=8.1.0以上 Create index indexname on table (function(field)); 53.怎么样移动表或表分区 [A]移动表的语法 Alter table tablename move [Tablespace new_name Storage(initial 50M next 50M pctincrease 0 pctfree 10 pctused 50 initrans 2) nologging] 移动分区的语法 alter table tablename move (partition partname) [update global indexes] 之后之后必须重建索引 Alter index indexname rebuild 如果表有Lob段，那么正常的Alter不能移动Lob段到别的表空间，而仅仅是移动了表段，可以采用如下的方法移动Lob段 alter table tablename move lob(lobsegname) store as (tablespace newts); 54.怎么样修改表的列名 [A]9i以上版本可以采用rname命令 ALTER TABLE UserName.TabName RENAME COLUMN SourceColumn TO DestColumn 9i以下版本可以采用create table …… as select * from SourceTable的方式。另外，8i以上可以支持删除列了 ALTER TABLE UserName.TabName SET UNUSED (ColumnName) CASCADE CONSTRAINTS ALTER TABLE UserName.TabName DROP (ColumnName) CASCADE CONSTRAINTS 55.case的用法在sql语句中 CASE test_value WHEN expression1 THEN value1 [[WHEN expression2 THEN value2] [...]] [ELSE default_value] END 比如1 SELECT last_name, job_id, salary CASE job_id WHEN \'IT_PROG\' THEN 1.10*salary WHEN \'ST_CLERK\' THEN 1.15*salary WHEN \'SA_REP\' THEN 1.20*salary ELSE salary END \"REVISED_SALARY\" FROM employees 比如2 select case when real_charge>=20000 and real_charge<30000 then 5000 when real_charge>=30000 and real_charge<40000 then 9000 when real_charge>=40000 and real_charge<50000 then 10000 when real_charge>=50000 and real_charge<60000 then 14000 when real_charge>=60000 and real_charge<70000 then 18000 when real_charge>=70000 and real_charge<80000 then 19000 when real_charge>=80000 and real_charge<90000 then 24000 when real_charge>=90000 and real_charge<100000 then 27000 when real_charge>=100000 and real_charge<110000 then 27000 when real_charge>=110000 and real_charge<120000 then 29000 when real_charge>=120000 then 36000 else 0 end ,acc_id,user_id,real_charge from okcai_jh_charge_200505 在存储过程中 case v_strGroupClassCode when \'1\' then v_nAttrNum := v_nAttrNum + 300; v_strAttrFlag := \'1\'||substr(v_strAttrFlag,2,7); when \'2\' then v_nAttrNum := v_nAttrNum + 200; v_strAttrFlag := \'2\'||substr(v_strAttrFlag,2,7); else NULL; end case; 注意的是存储过程和sql语句有的细微差别是用end case，而不是end。语句后面跟\";\"

达内-ORACLE学习笔记

为了规范数据库的使用，从命名规则到性能等，都是在开发过程中必须贯彻的编程思想

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