1 permission to use the dba role gives users log on to the oracle (hly201907) UTL_FILE use the
GRANT EXECUTE ON UTL_FILE TO hly201907;
2 Create a working folder (D: / TEMP) and is it a nickname (D_OUTPUT)
create or replace directory D_OUTPUT as 'D:/TEMP';
3 Use the dba role log on to the oracle given user rights (hly201907) reading and writing folders
grant read,write on directory D_OUTPUT to hly201907;
4 create a stored procedure (the last brush data to a file)
create or replace PROCEDURE TEST AS
V_FILE UTL_FILE.FILE_TYPE;
L_BUFFER VARCHAR2(4000);
V_SqlString VARCHAR2(2000);
BEGIN
V_FILE := UTL_FILE.FOPEN('D_OUTPUT', 'Data.txt', 'w');-- 写文件
-- 定义sql 语句
V_SqlString := 'select to_char(sysdate,'|| '''yyyy-mm-dd hh24:mi:ss''' || ') from dual';
-- 执行sql 语句 并把结果赋值给L_BUFFER
execute immediate V_SqlString into L_BUFFER;
-- 把L_BUFFER 写入到文件 连续写入三次
UTL_FILE.PUT_LINE(V_FILE, L_BUFFER);
UTL_FILE.PUT_LINE(V_FILE, L_BUFFER);
UTL_FILE.PUT_LINE(V_FILE, L_BUFFER);
-- 这里关闭文件。
UTL_FILE.FCLOSE(V_FILE);
NULL;
END TEST;
5 to create stored procedures (each addition, times and refresh)
create or replace PROCEDURE TEST AS
V_FILE UTL_FILE.FILE_TYPE;
L_BUFFER VARCHAR2(4000);
V_SqlString VARCHAR2(2000);
BEGIN
V_FILE := UTL_FILE.FOPEN('D_OUTPUT', 'Data.txt', 'w');-- 写文件
-- 定义sql 语句
V_SqlString := 'select to_char(sysdate,'|| '''yyyy-mm-dd hh24:mi:ss''' || ') from dual';
-- 执行sql 语句 并把结果赋值给L_BUFFER
execute immediate V_SqlString into L_BUFFER;
-- 把L_BUFFER 写入到文件
UTL_FILE.PUT_LINE(V_FILE, L_BUFFER);
-- 这里关闭文件。
UTL_FILE.FCLOSE(V_FILE);
-- 读取文件
V_FILE := UTL_FILE.FOPEN('D_OUTPUT', 'Data.txt', 'a');
-- 定义sql 语句
V_SqlString := 'select to_char(sysdate,'|| '''yyyy-mm-dd hh24:mi:ss''' || ') from dual';
-- 执行sql 语句 并把结果赋值给L_BUFFER
execute immediate V_SqlString into L_BUFFER;
-- 把L_BUFFER 写入到文件
UTL_FILE.PUT_LINE(V_FILE, L_BUFFER);
-- 这里关闭文件。
UTL_FILE.FCLOSE(V_FILE);
NULL;
END TEST;
6 this document will be output to the specified output file (D: /TEMP/Data.txt).
7 may output data (or log) is written to a single SQL stored procedure, as follows.
create or replace procedure OUTPUT_LOG(fileName IN VARCHAR2,message IN VARCHAR2 ) is
-- 需要两个参数 第一个参数是输出的文件名称 第二个参数是要输出的字符串
V_FILE UTL_FILE.FILE_TYPE;
V_SqlString VARCHAR2(200);
V_message VARCHAR2(200);
begin
V_SqlString := 'select to_char(sysdate,'|| '''yyyy-mm-dd hh24:mi:ss''' || ') from dual';
execute immediate V_SqlString into V_message;
V_message :=message||'-------------'||V_message;
V_FILE := UTL_FILE.FOPEN('D_OUTPUT', fileName||'.log', 'a');-- 写文件
UTL_FILE.PUT_LINE(V_FILE, V_message);
-- 这里关闭文件。
UTL_FILE.FCLOSE(V_FILE);
end OUTPUT_LOG;
8 Data output (log) stored procedure call mode, for example, in the plsql
BEGIN
OUTPUT_LOG('2019-09-16','TEST');
END;
9 This will in directory D_OUTPUT: add a file of today's date 2019-09-16.log file (D / TEMP), where the data is
TEST---------------------2019-09-16 18:09:58
。