Sqlldr userid=lgone/tiger control=a.ctl
LOAD DATA
INFILE 't.dat' // 要導入的文件
// INFILE 'tt.date' // 導入多個文件
// INFILE * // 要導入的內容就在control文件裏 下面的BEGINDATA後面就是導入的內容, *和't.dat'不能同時存在
INTO TABLE table_name // 指定裝入的表
BADFILE 'c:bad.txt' // 指定壞文件地址
************* 以下是4種裝入表的方式
APPEND // 原先的表有數據 就加在後面
// INSERT // 裝載空表 如果原先的表有數據 sqlloader會停止 默認值
// REPLACE // 原先的表有數據 原先的數據會全部刪除
// TRUNCATE // 指定的內容和replace的相同 會用truncate語句刪除現存數據
************* 指定的TERMINATED可以在表的開頭 也可在表的內部字段部分
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
// 裝載這種數據: 10,lg,"""lg""","lg,lg"
// 在表中結果: 10 lg "lg" lg,lg
// TERMINATED BY X '09' // 以十六進制格式 '09' 表示的
// TERMINATED BY WRITESPACE // 裝載這種數據: 10 lg lg
TRAILING NULLCOLS ************* 表的字段沒有對應的值時允許爲空
************* 下面是表的字段
(
col_1 , col_2 ,col_filler FILLER // FILLER 關鍵字 此列的數值不會被裝載
// 如: lg,lg,not 結果 lg lg
)
// 當沒聲明FIELDS TERMINATED BY ',' 時
// (
// col_1 [interger external] TERMINATED BY ',' ,
// col_2 [date "dd-mon-yyy"] TERMINATED BY ',' ,
// col_3 [char] TERMINATED BY ',' OPTIONALLY ENCLOSED BY 'lg'
// )
// 當沒聲明FIELDS TERMINATED BY ','用位置告訴字段裝載數據
// (
// col_1 position(1:2),
// col_2 position(3:10),
// col_3 position(*:16), // 這個字段的開始位置在前一字段的結束位置
// col_4 position(1:16),
// col_5 position(3:10) char(8) // 指定字段的類型
// )
BEGINDATA // 對應開始的 INFILE * 要導入的內容就在control文件裏
,Sql,what
,lg,show
=====================================================================================
/**///////////// 注意begindata後的數值前面不能有空格
***** 普通裝載
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
(DEPTNO,
DNAME,
LOC
)
BEGINDATA
,Sales,"""USA"""
,Accounting,"Virginia,USA"
,Consulting,Virginia
,Finance,Virginia
,"Finance","",Virginia // loc 列將爲空
,"Finance",,Virginia // loc 列將爲空
***** FIELDS TERMINATED BY WHITESPACE 和 FIELDS TERMINATED BY x'09' 的情況
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY WHITESPACE
-- FIELDS TERMINATED BY x'09'
(DEPTNO,
DNAME,
LOC
)
BEGINDATA
Sales Virginia
***** 指定不裝載那一列
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
( DEPTNO,
FILLER_1 FILLER, // 下面的 "Something Not To Be Loaded" 將不會被裝載
DNAME,
LOC
)
BEGINDATA
,Something Not To Be Loaded,Accounting,"Virginia,USA"
***** position的列子
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
( DEPTNO position(1:2),
DNAME position(*:16), // 這個字段的開始位置在前一字段的結束位置
LOC position(*:29),
ENTIRE_LINE position(1:29)
)
BEGINDATA
Accounting Virginia,USA
***** 使用函數 日期的一種表達 TRAILING NULLCOLS的使用
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ','
TRAILING NULLCOLS // 其實下面的ENTIRE_LINE在BEGINDATA後面的數據中是沒有直接對應
// 的列的值的 如果第一行改爲 10,Sales,Virginia,1/5/2000,, 就不用TRAILING NULLCOLS了
(DEPTNO,
DNAME "upper(:dname)", // 使用函數
LOC "upper(:loc)",
LAST_UPDATED date 'dd/mm/yyyy', // 日期的一種表達方式 還有'dd-mon-yyyy' 等
ENTIRE_LINE ":deptno||:dname||:loc||:last_updated"
)
BEGINDATA
,Sales,Virginia,1/5/2000
,Accounting,Virginia,21/6/1999
,Consulting,Virginia,5/1/2000
,Finance,Virginia,15/3/2001
***** 使用自定義的函數 // 解決的時間問題
create or replace
my_to_date( p_string in varchar2 ) return date
as
type fmtArray is table of varchar2(25);
l_fmts fmtArray := fmtArray( 'dd-mon-yyyy', 'dd-month-yyyy',
'dd/mm/yyyy',
'dd/mm/yyyy hh24:mi:ss' );
l_return date;
begin
for i in 1 .. l_fmts.count
loop
begin
l_return := to_date( p_string, l_fmts(i) );
exception
when others then null;
end;
EXIT when l_return is not null;
end loop;
if ( l_return is null )
then
l_return :=
new_time( to_date('01011970','ddmmyyyy') + 1/24/60/60 *
p_string, 'GMT', 'EST' );
end if;
return l_return;
end;
/
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ','
TRAILING NULLCOLS
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED "my_to_date( :last_updated )" // 使用自定義的函數
)
BEGINDATA
,Sales,Virginia,01-april-2001
,Accounting,Virginia,13/04/2001
,Consulting,Virginia,14/04/2001 12:02:02
,Finance,Virginia,987268297
,Finance,Virginia,02-apr-2001
,Finance,Virginia,Not a date
***** 合併多行記錄爲一行記錄
LOAD DATA
INFILE *
concatenate 3 // 通過關鍵字concatenate 把幾行的記錄看成一行記錄
INTO TABLE DEPT
replace
FIELDS TERMINATED BY ','
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED date 'dd/mm/yyyy'
)
BEGINDATA
,Sales, // 其實這3行看成一行 10,Sales,Virginia,1/5/2000
Virginia,
/5/2000
// 這列子用 continueif list="," 也可以
告訴sqlldr在每行的末尾找逗號 找到逗號就把下一行附加到上一行
LOAD DATA
INFILE *
continueif this(1:1) = '-' // 找每行的開始是否有連接字符 - 有就把下一行連接爲一行
// 如 -10,Sales,Virginia,
// 1/5/2000 就是一行 10,Sales,Virginia,1/5/2000
// 其中1:1 表示從第一行開始 並在第一行結束 還有continueif next 但continueif list最理想
INTO TABLE DEPT
replace
FIELDS TERMINATED BY ','
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED date 'dd/mm/yyyy'
)
BEGINDATA // 但是好象不能象右面的那樣使用
-10,Sales,Virginia, -10,Sales,Virginia,
/5/2000 1/5/2000
-40, 40,Finance,Virginia,13/04/2001
Finance,Virginia,13/04/2001
***** 載入每行的行號
load data
infile *
into table t
replace
( seqno RECNUM //載入每行的行號
text Position(1:1024))
BEGINDATA
fsdfasj //自動分配一行號給載入 表t 的seqno字段 此行爲 1
fasdjfasdfl // 此行爲 2
***** 載入有換行符的數據
注意: unix 和 windows 不同 & /n
< 1 > 使用一個非換行符的字符
LOAD DATA
INFILE *
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ','
TRAILING NULLCOLS
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED "my_to_date( :last_updated )",
COMMENTS "replace(:comments,'n',chr(10))" // replace 的使用幫助轉換換行符
)
BEGINDATA
,Sales,Virginia,01-april-2001,This is the SalesnOffice in Virginia
,Accounting,Virginia,13/04/2001,This is the AccountingnOffice in Virginia
,Consulting,Virginia,14/04/2001 12:02:02,This is the ConsultingnOffice in Virginia
,Finance,Virginia,987268297,This is the FinancenOffice in Virginia
< 2 > 使用fix屬性
LOAD DATA
INFILE demo17.dat "fix 101"
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ','
TRAILING NULLCOLS
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED "my_to_date( :last_updated )",
COMMENTS
)
demo17.dat
,Sales,Virginia,01-april-2001,This is the Sales
Office in Virginia
,Accounting,Virginia,13/04/2001,This is the Accounting
Office in Virginia
,Consulting,Virginia,14/04/2001 12:02:02,This is the Consulting
Office in Virginia
,Finance,Virginia,987268297,This is the Finance
Office in Virginia
// 這樣裝載會把換行符裝入數據庫 下面的方法就不會 但要求數據的格式不同
LOAD DATA
INFILE demo18.dat "fix 101"
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED "my_to_date( :last_updated )",
COMMENTS
)
demo18.dat
,Sales,Virginia,01-april-2001,"This is the Sales
Office in Virginia"
,Accounting,Virginia,13/04/2001,"This is the Accounting
Office in Virginia"
,Consulting,Virginia,14/04/2001 12:02:02,"This is the Consulting
Office in Virginia"
,Finance,Virginia,987268297,"This is the Finance
Office in Virginia"
< 3 > 使用var屬性
LOAD DATA
INFILE demo19.dat "var 3"
// 3 告訴每個記錄的前3個字節表示記錄的長度 如第一個記錄的 071 表示此記錄有 71 個字節
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ','
TRAILING NULLCOLS
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED "my_to_date( :last_updated )",
COMMENTS
)
demo19.dat
,Sales,Virginia,01-april-2001,This is the Sales
Office in Virginia
,Accounting,Virginia,13/04/2001,This is the Accounting
Office in Virginia
,Consulting,Virginia,14/04/2001 12:02:02,This is the Consulting
Office in Virginia
,Finance,Virginia,987268297,This is the Finance
Office in Virginia
< 4 > 使用str屬性
// 最靈活的一中 可定義一個新的行結尾符 win 回車換行 : chr(13)||chr(10)
此列中記錄是以 a|rn 結束的
select utl_raw.cast_to_raw('|'||chr(13)||chr(10)) from dual;
結果 7C0D0A
LOAD DATA
INFILE demo20.dat "str X'7C0D0A'"
INTO TABLE DEPT
REPLACE
FIELDS TERMINATED BY ','
TRAILING NULLCOLS
(DEPTNO,
DNAME "upper(:dname)",
LOC "upper(:loc)",
LAST_UPDATED "my_to_date( :last_updated )",
COMMENTS
)
demo20.dat
,Sales,Virginia,01-april-2001,This is the Sales
Office in Virginia|
,Accounting,Virginia,13/04/2001,This is the Accounting
Office in Virginia|
,Consulting,Virginia,14/04/2001 12:02:02,This is the Consulting
Office in Virginia|
,Finance,Virginia,987268297,This is the Finance
Office in Virginia|
==============================================================================
象這樣的數據 用 nullif 子句
-jan-200002350Flipper seemed unusually hungry today.
-jan-200009945Spread over three meals.
id position(1:3) nullif id=blanks // 這裏可以是blanks 或者別的表達式
// 下面是另一個列子 第一行的 1 在數據庫中將成爲 null
LOAD DATA
INFILE *
INTO TABLE T
REPLACE
(n position(1:2) integer external nullif n='1',
v position(3:8)
)
BEGINDATA
10
lg
------------------------------------------------------------