用存储过程创建数据表:
创建时注意必须添加authid current_user，如果创建的表已存在，存储过程继续执行，但如不不加此关键语句，存储过程将出现异常，
这个语句相当于赋权限。
例1
创建语句如下：
复制代码 代码如下:
create or replace
procedure sp_create_mnl(i_id varchar2) authid current_user as
/*********************************
名称：sp_create_mnl
功能描述：创建模拟量历史数据存储表
修订记录：
版本号 编辑时间 编辑人 修改描述
1.0.0 2012-9-20 wylaok 1.创建此存储过程
1.0.1 2012-9-21 wylaok 2.修改表名称及变量名称，增加必要注释
入参出参描述：
i_id 测点编号
**********************************/
v_tablename varchar2(30);–表名
v_flag number(10,0);
v_sqlfalg varchar(200);
begin
v_flag:=0;
v_tablename:=concat(‘mnl’, upper(i_id));
v_sqlfalg:=’select count(*) from user_tables where table_name=”’||v_tablename||””;
dbms_output.put_line(v_sqlfalg);
execute immediate v_sqlfalg into v_flag;
if v_flag=0 then –如果没有这个表 则去创建
begin
execute immediate ‘create table ‘||v_tablename ||’
( datetime date,
min00 float,
agv00 float,
max00 float,
min05 float,
avg05 float,
max05 float,
min10 float,
agv10 float,
max10 float,
min15 float,
agv15 float,
max15 float,
min20 float,
agv20 float,
max20 float,
min25 float,
agv25 float,
max25 float,
min30 float,
agv30 float,
max30 float,
min35 float,
agv35 float,
max35 float,
min40 float,
agv40 float,
max40 float,
min45 float,
agv45 float,
max45 float,
min50 float,
agv50 float,
max50 float,
min55 float,
agv55 float,
max55 float,
minv float,
maxv float,
avgv float,
maxtime date,
mintime date
)
tablespace wyg
pctfree 10
initrans 1
maxtrans 255
storage
(
initial 512k
next 512k
minextents 1
maxextents unlimited
pctincrease 0
)’;
— execute immediate sqlstr;
end;
end if;
end;
调用此存储过程：
复制代码 代码如下:
begin
createmnl(‘mnl_14’);
end;
例2
复制代码 代码如下:
create or replace procedure bip_mms_partition_proc as
v_mms_task_tab varchar2(50); –表名
v_mms_content_tab varchar2(50);
v_mms_user_tab varchar2(50);
v_tablespace varchar2(20); –表空间
v_partpreflag varchar2(50); –分区名标识
v_sqlcursor number; –游标
v_sqlexec varchar2(2000); –执行语句
v_partpredate varchar2(20); –分区日期
v_rangevalue number;
v_rangedate number;
v_rows number(30) := 0;
v_num number(30) := 0;
verrinfo varchar2(200);
p_datefrom number;
p_partnum number;
p_range number;
begin
v_mms_task_tab := ‘bip_mms_mt_task_log_tab_test’;
v_mms_content_tab := ‘bip_mms_mt_content_tab_test’;
v_mms_user_tab := ‘bip_mms_mt_user_log_tab_test’;
— 读取配置参数
begin
select to_number(value)
into p_datefrom
from bip_others_properties_tab
where name = ‘p_datefrom’;
select to_number(value)
into p_partnum
from bip_others_properties_tab
where name = ‘p_partnum’;
select to_number(value)
into p_range
from bip_others_properties_tab
where name = ‘p_range’;
exception
when others then
begin
p_datefrom := 0;
p_partnum := 1;
p_range := 180;
end;
end;
–记录存储过程添加分区
insert into bip_log_stat_exec_tab
values
(to_char(sysdate, ‘yyyymmddhh24miss’),
‘bip_mms_partition_proc_add’,
‘begin’);
commit;
–add partition
for i in 1 .. p_partnum loop
–bip_mms_mt_content_tab 添加分区
v_partpredate := to_char(sysdate + p_datefrom + i, ‘yyyymmdd’);
dbms_output.put_line(v_partpredate);
v_num := 0;
v_tablespace := ‘bip_mms_ts_test’;
v_partpreflag := ‘mms_mt_content’;
select count(*)
into v_num
from user_tab_partitions
where table_name = v_mms_content_tab
and substr(partition_name, 16, 8) = v_partpredate;
if v_num < 1 then
v_rangedate := to_char(sysdate + p_datefrom + i, ‘yyyymmdd’);
v_rangevalue := v_rangedate || ‘240000’;
dbms_output.put_line(v_rangevalue);
v_sqlexec := ‘alter table ‘ || v_mms_content_tab || ‘ add partition ‘ ||
v_partpreflag || ‘_’ || v_partpredate ||
‘ values less than(”’ || v_rangevalue ||
”’) tablespace ‘ || v_tablespace;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
end if;
–bip_mms_mt_task_log_tab_test 添加分区
v_partpredate := to_char(sysdate + p_datefrom + i, ‘yyyymmdd’);
v_num := 0;
v_tablespace := ‘bip_mms_ts_test’;
v_partpreflag := ‘mms_mt_task_log’;
select count(*)
into v_num
from user_tab_partitions
where table_name = v_mms_task_tab
and substr(partition_name, 17, 8) = v_partpredate;
if v_num < 1 then
v_rangedate := to_char(sysdate + p_datefrom + i, ‘yyyymmdd’);
v_rangevalue := v_rangedate || ‘240000’;
v_sqlexec := ‘alter table ‘ || v_mms_task_tab || ‘ add partition ‘ ||
v_partpreflag || ‘_’ || v_partpredate ||
‘ values less than(”’ || v_rangevalue ||
”’) tablespace ‘ || v_tablespace;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
end if;
–bip_mms_mt_user_log_tab_test 添加分区
v_partpredate := to_char(sysdate + p_datefrom + i, ‘yyyymmdd’);
v_num := 0;
v_tablespace := ‘bip_mms_ts_test’;
v_partpreflag := ‘mms_mt_user_log’;
select count(*)
into v_num
from user_tab_partitions
where table_name = v_mms_user_tab
and substr(partition_name, 17, 8) = v_partpredate;
if v_num < 1 then
v_rangedate := to_char(sysdate + p_datefrom + i, ‘yyyymmdd’);
v_rangevalue := v_rangedate || ‘240000’;
v_sqlexec := ‘alter table ‘ || v_mms_user_tab || ‘ add partition ‘ ||
v_partpreflag || ‘_’ || v_partpredate ||
‘ values less than(”’ || v_rangevalue ||
”’) tablespace ‘ || v_tablespace;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
end if;
end loop;
commit;
insert into bip_log_stat_exec_tab
values
(to_char(sysdate, ‘yyyymmddhh24miss’), ‘bip_mms_partition_proc_add’, ‘end’);
commit;
–delete partition
insert into bip_log_stat_exec_tab
values
(to_char(sysdate, ‘yyyymmddhh24miss’),
‘bip_mms_partition_proc_del’,
‘begin’);
commit;
begin
v_partpreflag := ‘mms_mt_content’ || ‘_’ ||
to_char(sysdate – p_range, ‘yyyymmdd’);
dbms_output.put_line(v_partpreflag);
v_sqlexec := ‘alter table ‘ || v_mms_content_tab ||
‘ truncate partition ‘ || v_partpreflag;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
dbms_output.put_line(v_partpreflag || ‘ truncated’);
v_sqlexec := ‘alter table ‘ || v_mms_content_tab || ‘ drop partition ‘ ||
v_partpreflag;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
dbms_output.put_line(v_partpreflag || ‘ dropped’);
end;
begin
v_partpreflag := ‘mms_mt_task_log’ || ‘_’ ||
to_char(sysdate – p_range, ‘yyyymmdd’);
dbms_output.put_line(v_partpreflag);
v_sqlexec := ‘alter table ‘ || v_mms_task_tab || ‘ truncate partition ‘ ||
v_partpreflag;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
dbms_output.put_line(v_partpreflag || ‘ truncated’);
v_sqlexec := ‘alter table ‘ || v_mms_task_tab || ‘ drop partition ‘ ||
v_partpreflag;
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
dbms_output.put_line(v_partpreflag || ‘ dropped’);
end;
begin
v_partpreflag := ‘mms_mt_user_log’ || ‘_’ ||
to_char(sysdate – p_range, ‘yyyymmdd’);
dbms_output.put_line(v_partpreflag);
v_sqlexec := ‘alter table ‘ || v_mms_user_tab || ‘ truncate partition ‘ ||
v_partpreflag;
dbms_output.put_line(v_sqlexec);
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
dbms_output.put_line(v_partpreflag || ‘ truncated’);
v_sqlexec := ‘alter table ‘ || v_mms_user_tab || ‘ drop partition ‘ ||
v_partpreflag;
v_sqlcursor := dbms_sql.open_cursor;
dbms_sql.parse(v_sqlcursor, v_sqlexec, dbms_sql.native);
v_rows := dbms_sql.execute(v_sqlcursor);
dbms_sql.close_cursor(v_sqlcursor);
dbms_output.put_line(v_partpreflag || ‘ dropped’);
end;
commit;
insert into bip_log_stat_exec_tab
values
(to_char(sysdate, ‘yyyymmddhh24miss’),
‘bip_mms_partition_proc_del’,
‘end’);
commit;
exception
when others then
begin
rollback;
dbms_output.put_line(to_char(sqlcode));
verrinfo := substr(sqlerrm, 1, 200);
dbms_output.put_line(to_char(verrinfo));
insert into bip_log_stat_exec_tab
values
(to_char(sysdate, ‘yyyymmddhh24miss’),
‘bip_mms_partition_proc_error’,
verrinfo);
commit;
end;
end bip_mms_partition_proc;