c sqlserver建表csdn_Oracle拉出在sqlserver建表的语句
我們將Oracle數(shù)據(jù)同步到sqlserver時，是先得在sqlserver端建表的。
復(fù)雜的字段我們不同步，就只考慮下面四種數(shù)據(jù)類型。
Oracle到SQLServer做的映射：
int -> int
number -> decimal(18,6)
number(p,s) -> decimal(p,s)
date -> datetime
varchar2(n) -> nvarchar(n)
下面是從Oracle端執(zhí)行的plsql腳本。
/*
簡介：從oracle拉出在mssql建表的腳本。這是用PLSQL語言寫成的，在Oracle中執(zhí)行的腳本。如下是取出BOM屬主下的非臨時表。
作者：DBA_白老大
最后更新日期：20140515
*/
/*
Oracle到SQLServer做的映射：
int -> int
number -> decimal(18,6)
number(p,s) -> decimal(p,s)
date -> datetime
varchar2(n) -> nvarchar(n)
*/
declare
v_column_name VARCHAR2(30);
v_data_type VARCHAR2(106);
v_data_length number;
v_DATA_PRECISION number;
v_DATA_SCALE number;
v_cnt int;
begin
for i in (
SELECT ‘GGMGR‘ AS OWNER, ‘T6‘ AS table_name FROM DUAL UNION
SELECT ‘GGMGR‘ AS OWNER, ‘T2‘ AS table_name FROM DUAL UNION
SELECT ‘GGMGR‘ AS OWNER, ‘T6‘ AS table_name FROM DUAL
)
loop
dbms_output.put_line(‘create table ‘||‘erp‘||‘.‘||‘dbo.‘||i.table_name||‘(‘);
select count(*)
into v_cnt
from dba_tab_columns
where table_name = i.table_name
and owner = i.owner;
for b in 1 .. v_cnt loop
select COLUMN_NAME,
data_type,
data_length,
data_precision,
data_scale
into v_column_name,
v_data_type,
v_data_length,
v_DATA_PRECISION,
v_DATA_SCALE
from dba_tab_columns t
where table_name = i.table_name
and owner = i.owner
and column_id = b;
--INT
IF v_data_type = ‘NUMBER‘ and v_DATA_PRECISION is null and b != v_cnt THEN
dbms_output.put_line(v_column_name||‘? decimal‘||‘,‘);
END IF;
IF v_data_type = ‘NUMBER‘ and v_DATA_PRECISION is null and b = v_cnt THEN
dbms_output.put_line(v_column_name||‘? decimal‘);
END IF;
--NUMBER
IF (v_data_type = ‘NUMBER‘)? and (v_DATA_PRECISION is not null) and (b != v_cnt) THEN
dbms_output.put_line(v_column_name||‘? decimal‘||‘(‘||v_data_precision||‘,‘||v_data_scale||‘),‘);
END IF;
IF (v_data_type = ‘NUMBER‘) and (v_DATA_PRECISION is not null) and (b = v_cnt) THEN
dbms_output.put_line(v_column_name||‘? decimal‘||‘(‘||v_data_precision||‘,‘||v_data_scale||‘)‘);
END IF;
--varchar2
IF (v_data_type = ‘VARCHAR2‘)? and (v_DATA_length is not null) and (b != v_cnt) THEN
dbms_output.put_line(v_column_name||‘? nvarchar‘||‘(‘||v_data_length||‘),‘);
END IF;
IF (v_data_type = ‘VARCHAR2‘)? and (v_DATA_length is not null) and (b = v_cnt) THEN
dbms_output.put_line(v_column_name||‘? nvarchar‘||‘(‘||v_data_length||‘)‘);
END IF;
--date
IF (v_data_type = ‘DATE‘) and (b != v_cnt) THEN
dbms_output.put_line(v_column_name||‘? DATETIME,‘);
END IF;
IF (v_data_type = ‘DATE‘) and (b = v_cnt) THEN
dbms_output.put_line(v_column_name||‘? DATETIME‘);
END IF;
--不屬于INT,NUMBER,DATE,VARCHAR2
IF (v_column_name != ‘NUMBER‘)? and (v_column_name != ‘DATE‘) and (v_column_name != ‘VARCHAR2‘)? THEN
null;
END IF;
end loop;
dbms_output.put_line(‘);‘||chr(10));
end loop;
end;
總結(jié)
以上是生活随笔為你收集整理的c sqlserver建表csdn_Oracle拉出在sqlserver建表的语句的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： python自动抢红包软件_快过年啦，还
- 下一篇： java lambda 局部变量_jav