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First look at how to use JAVA to write Oracle Stored procedures, we Oracle Written statement in the SQL Plus . I. start SQL PLUS ⅱ. preparation JAVA Classes definition JAVA The category name, this stored procedure is simply output squares of paramete

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Assign permissions to the script chmod 755 *. sh The background of the script nohup sum_capa.sh & x=0 totMem=`vmstat | grep 'mem=' | awk -F\= '{ print $3 }' | awk -F\M '{print $1 }'` totMem1=` echo "$totMem * 200 " | bc ` while true do strDa

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[Reserved] http://bbs.bitscn.com/72875 1. Linux-based scripting Introduction 1.1 Basic syntax 1.1.1 The program must begin with the following line (the first line must be on file): #! / Bin / sh Symbol #! Used to tell the system behind the argument t

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<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE log4j:configuration PUBLIC "-//LOGGER" "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <appender name

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A: The use of the index - The efficiency of the database depends largely on the index to establish the specific principles of construction of the index, many articles have described, a little. - Introduces some of the SQL statement used to build the

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Query Optimization 1 the query is optimized, should avoid full table scans, we should first consider where and order by columns on the index involved. (2) should be avoided in the where clause to determine the value of the field null will cause the e

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Oracle SQL Developer offers the ability to create reports with graphs in it. A number of reports are included with the tool, unfortunately a report which shows information based on DBMS_PROFILER built in package isn't there. DBMS_PROFILER allows deve

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Summary record of the stored procedure call syntax with Java program mode A stored procedure First, we establish a simple test stored procedure table create table xuesheng (id integer, xing_ming varchar2 (25), yu_wen number, shu_xue number); insert i

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sudo grep-irn 'COMPILE'. / / "." current directory keyword 'COMPILE' sudo grep-i 'COMPILE' ltls.c / / find file in ltls.c keyword 'COMPILE' Usage: grep [option] ... pattern [file] ... Find the style of each file or standard input. PATTERN defaul

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Time statistics by date: Statistics for each time period was the number of entries, txtime is date type, sql as follows: By the hour --- select to_char (txtime, 'YYYY-MM-dd hh24') a, count (*) from mytable group by to_char (txtime, 'YYYY-MM-dd hh24')

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<! - [If gte mso 9]> <xml> <w:WordDocument> <w:BrowserLevel> MicrosoftInternetExplorer4 </ w: BrowserLevel> <w:DisplayHorizontalDrawingGridEvery> 0 </ w: DisplayHorizontalDrawingGridEvery> <w:DisplayVerticalDra

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(1) with the method according to according to oracle rowid with the rowid attribute to determine whether there is duplication, the statement is as follows: Check the data: select * from table1 a where rowid! = (select max (rowid) from table1 b where

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@ Entity @ Table (name = "goods") public class Goods { private String id; private String name; private String description; private Double price; private String yuanjia; private Date createDate; private Date modifyDate; ..........................

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5, object type instance: real Rational numbers to show the form of divided into two integers, a numerator and a denominator. Like most languages, PL / SQL is not a real number type or number of operations for the real predefined operator. Let us use

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. Tar (Note: tar is packaged, not compressed!) Compression :tar cvf < Compressed file > < Directory > Extract :tar xvf < Compressed file > . Gz Compression :gzip < File > Extract 1:gunzip < Compressed file > Extract 2:gzip -d

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After a long time to learn the usage of Linux scripting, so share with you, read this article you are sure a lot of harvest, hope this can teach you more things. Linux-based scripting syntax description: 1 at the beginning of the program must start w

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# Get the special ASCII characters are not visible GetAscii () { if [$ #-ne 1-o $ 1-lt 0-o $ 1-gt 127] then echo "######################################" echo "USAGE:" echo "GetAscii NUM" echo "NUM NUM must great or equa

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drop table person go create table person ( NUM INTEGER, NAME VARCHAR (20), AGE INTEGER, RANK INTEGER, COMMENT VARCHAR (100) ) go describe select * from person go - Stored Procedures create or replace procedure insertBatch (num integer, age integer, r

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CREATE DEFINER = `root` @ `localhost` PROCEDURE `APro` () begin declare num int; set num = 1; la: loop if (num <= 1000000) then begin insert into tableB (id, name) values ​​(num, 'xiaoyi'); set num = num +1; end; else leave la; end if; end loop; end

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grep command is under linux line filtering tools, many of its parameters, the following parameters on the role of all introduced one by one, we want to help. grep - print lines matching a pattern (the line style of the line lists) ◎ Syntax: grep [opt

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About "#! / Bin / sh" understanding Following the first one for the reference The first study shell programming , See the article said that a shell must be "#!/bin/sh" Beginning, that is the case also had , Although it is known in the

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Query and remove duplicate data Articles Category: Database If you want the name, ID number, address these three fields exactly the same record check out select p1 .* from persons p1, persons p2 where p1.id <> p2.id and p1.cardid = p2.cardid and p1.

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SELECT id event_id, cnt ggggance_reason_cnt, LTRIM (SYS_CONNECT_BY_PATH (display_name, ';'),';') gggance_reason_list FROM ( - Within each id, assign a row number and get a total count SELECT id, display_name, ROW_NUMBER () OVER ( PARTITION BY id ORDE

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I use the SQL statement: delete from fp_sgfpxx where fphm in (select fphm from fp_sgfpxx group by fphm having count (fphm)> 1) and rowid not in (select min (rowid) from fp_sgfpxx group by fphm having count (fphm)> 1) remove duplicate invoice numbers

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Method One: ping Disadvantages: Time accuracy of 1 second, is not precise enough @echo off @ping 127.0.0.1 -n 6 > nul start gdh.txt Method Two: vbs start / wait Disadvantages: create temporary files advantages: time resolution of 0.001 seconds, high

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Linux shell scripting-based collection http://blog.csdn.net/fpmystar/archive/2009/05/14/4183678.aspx During the test linux scripting is essential, Shell script name can be easily defined, nor any extension, for example, you can write abc, smartzip su

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1 should be avoided in the where clause to determine the field for null value, otherwise it will cause the engine to abandon the use of indexes and full table scan, such as: select id from t where num is null You can set the default value of 0 on the

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This paper discusses three typical multi-threaded interaction problems: producers of consumer issues, problems and philosopher barber problem. I have three questions on the process and do the basic programming (Ruby & Erlang). Producer-consumer probl

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Lex just learning the practice. Is very simple. lrc.l: lex file, defines the time tag markers, and operating %{ %} num [0-9]+ timetag \[{num}+\:{num}+(\.{num}+)?\] %% {timetag} { return 1;} \n ; . ; %% int yywrap() { return 1; } % {%} Middle is empty

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1. Linux 1.1-based syntax of scripting a basic introduction to 1.1.1 at the beginning of the program must start with the following line (be the first line in the file side): #! / Bin / sh Symbol #! Used to tell the system behind the argument that it

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Detailed grep command under linux grep command is under linux line filtering tools, many of its parameters, the following parameters on the role of all introduced one by one, we want to help. grep - print lines matching a pattern (the line style of t

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DELIMITER // CREATE EVENT e_hourly ON SCHEDULE EVERY 1 MINUTE-- SECOND DO BEGIN declare this_num int; declare this_id int; declare done int default 0; -- Cycle tag -- Define a cursor DECLARE ordernumbers CURSOR FOR SELECT tab1_id,num FROM tab1; decla

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Oracle Database Learning - Stored Procedures SQL is written in the loop and branch create or replace procedure basePro is num number default 0; begin --loop Cycle loop Dbms_Output.put_line('loop...end loop' || num); exit when(num > 2); num := num + 1

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Today at the Forum to see a face questions, is there any way that can replace distinct, get the same results. The answer we have been talking about it and found very interesting, on the record about: SQL> select num from t1; NUM ---------- 6 6 7 8 9

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1 PL / SQL on behalf of A PROCEDURAL LANGUAGE / SQL B PROGRAM LANGUAGE SQL C POWER LANGUAGE SQL D is not on the 2 _____ engine executes PL / SQL block A SQL B PL / SQL C ORACLE D is not on the 3 An object can show various forms of ability is called A

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switch (flag) { case 1: / / year for (int i = timesint1 [0]; i <= timesint2 [0]; i + +) { TjResultBean tjResultBean = new TjResultBean (); sqlsmtj = "select sum (num) nums from smtj where year =" + i; sqlUseryxs = "select count (id) nums

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