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. Connected to:oracle9i Enterprise Edition release 9.2.0.4.0-productionwith the partitioning optionjserver release 9.2.0.4 .0-productionsql> set echo onsql> @f_get_rowidSQL > Create or Replace function Get_rowid 2 (l_rowid in varchar2) 3 Return VARCHAR2 4 is 5 ls_my_rowid varchar2 (200); 6 Rowid_type number; 7 Object_number number; 8 RELATIVE_FNO number; 9 Block_number number; Ten row_number number; Begin Dbms_rowid.rowid_info (L_ROWID,ROWID_TYPE,OBJECT_NUMBER,RELATIVE_FNO, Block_number, row_num

Last month, I had the opportunity to hear TUSC's rich Niemiec about Oracle's performance analysis issues in the Dallas Oracle user group, one of the tips he gave us, which I felt was very beneficial, that Statspack still needed in Oracle 10g. The most talked about Oracle 10g performance is the new automated Workload repository (AWR) feature and proactive performance monitoring through automated database diagnostics monitoring (ADDM). They are widely

INTO CUSTOMER_TBL values (' 432 ', ' SCOTT MARKET ', ' RR2 bdx 173 ', ' Brownsburg ', ' in ', ' 45687 ', ' 3178529835 ', ' 3178529836 '); INSERT INTO CUSTOMER_TBL values (' 333 ', ' Jasdns and DALLAS goodies ', ' LAFAYETTE SQ MALL ', ' INDIANAPOLIS ', ' in ', ' 46222 ', ' 3172978886 ', ' 3172978887 '); INSERT INTO CUSTOMER_TBL values (' ', ' Morgans Candies and Treats ', ' 5657 W tenth ST ', ' INDIANAPOLIS ', ' in ', ' 46234 ', ' 3172714398 ',

(waiter list) and the list of processes that are using the buffer header (user list). The buffer specified in DUMP block--contains BH method as follows: --database version: 11.2.0.4 -Add, if it is to dump the entire buffer CACHE, you can refer to: http://blog.csdn.net/haibusuanyun/article/details/17439845 bys@ bys3>select dept.*,dbms_rowid.rowid_object (ROWID) object#,dbms_rowid.rowid_relative_fno rowid (FILE#,DBMS_) Rowid.rowid_block_number (ROWID) block#,dbms_rowid.rowid_row_number (ROWID)

Case: After the boot originally 166MHz CPU turned 133MHz the information is "defaultscmossetuploaded, after resetting the CPU parameters in Cmossetup (soft hop motherboard), the system normally shows 166 main frequency, but not a day, Will repeat the above process. Diagnostics: This behavior is common in soft-setting motherboards for CPU parameters. The ordinary button lithium battery is 3V, the actual measurement should be more than 3V. If this problem occurs most of the battery voltage has be

. By the way, when Biddlecombe started implementing the virtualization program, none of his company's 100 IT staff had virtualization experience or VMware experience. ' We are companies that use sun products, ' he said. To address the problem of virtualization, he hired a consulting partner, Catapult Systems. Time is everything. For Transplace companies, the 2007 virtualization leap in business and technical aspects of the significance. Business requirements: Transplace works with its custome

one, single Bus Protocol (1-wire) 1. Definition: The host and slave through 1 lines of communication, on a bus can be attached to the number of slave devices almost unrestricted. 2. Features: This is a communications technology introduced by Dallas Semiconductor. It uses a single signal line, both to transmit the clock, but also to transfer data, and data transmission is bidirectional. 3. Advantages: Single-bus technology has simple circuit, less h

results, which is obviously not conducive to automatic processing in the program.Self-connect mode:SELECT b.* from shopping as a,shopping as Bwhere A.name= ' Whitney ' and A.priceGets the following table information:Note the point:Alias A, B although the name is different, but the same table, the purpose of defining aliases is more convenient to delete themselves.The b.* that is obtained by executing select through (the intermediate table) is the final result.To give an example :CREATE Table De

Tags: MySQLThis article mainly introduces the query syntax of MySQL in Where,group by, order BY, Limit,join,union, union All, child table and so on.Test data preparationCREATE TABLE EMP (empno numeric (4) NOT NULL, ename varchar, job varchar (9), Mgr Numeric (4), hired Ate datetime, Sal numeric (7, 2), Comm Numeric (7, 2), Deptno numeric (2)); CREATE TABLE Dept (deptno Numeric (2), dname varchar, loc varchar (13)); CREATE TABLE Salgrade (grade numeric, losal numeric, hisal numeric); INSERT IN

-Feb-83GRANT CONNECT,RESOURCE,UNLIMITED TABLESPACE TO SCOTT IDENTIFIED BY TIGER;ALTER USER SCOTT DEFAULT TABLESPACE USERS;ALTER USER SCOTT TEMPORARY TABLESPACE TEMP;CONNECT SCOTT/TIGERDROP TABLE DEPT;CREATE TABLE DEPT (DEPTNO NUMBER(2) CONSTRAINT PK_DEPT PRIMARY KEY,DNAME VARCHAR2(14) ,LOC VARCHAR2(13) ) ;DROP TABLE EMP;CREATE TABLE EMP (EMPNO NUMBER(4) CONSTRAINT PK_EMP PRIMARY KEY,ENAME VARCHAR2(10),JOB VARCHAR2(9),MGR NUMBER(4),HIREDATE DATE,SAL NUMBER(7,2),COMM NUMBER(7,2),DEPTNO

VALUES(Ten, ' ACCOUNTING ', ' NEW YORK ');INSERT into DEPT VALUES ("DALLAS");INSERT into DEPT VALUES(+, ' SALES ', ' CHICAGO ');INSERT into DEPT VALUES(+, ' OPERATIONS ', ' BOSTON ');INSERT into EMP VALUES(7369, ' SMITH ', ' Clerk ', 7902,to_date (' 17-12-1980 ', ' dd-mm-yyyy '), 800,null,20);INSERT into EMP VALUES(7499, ' ALLEN ', ' salesman ', 7698,to_date (' 20-2-1981 ', ' dd-mm-yyyy '), 1600,300,30);INSERT into EMP VALUES(7521, ' WARD ', ' salesm

and data--Create tables and delete tables;DROPTABLEDEPT;CREATETABLEDEPT (DEPTNONumber (2)CONSTRAINT pk_deptPRIMARYKEY, dnameVARCHAR2 (14), LOCVARCHAR2 (13) ) ;--Create tables and delete tables;DROPTABLEEMP;CREATETABLEEMP (EMPNONumber (4)CONSTRAINT pk_empPRIMARYKEY, enameVARCHAR2 (10), JOBVARCHAR2 (9), MGRNumber (4), HireDate DATE, SALNumber (7,2), COMMNumber (7,2), DEPTNONumber (2)CONSTRAINT Fk_deptnoREFERENCESDEPT);---Insert DEPT Statement Block;INSERTInto DEPTVALUES(10,‘ACCOUNTING‘,‘NEW YORK‘

Recently practiced a SQL to share to everyone,First on the topic:--Department tableCREATE TABLE DEPT (DEPTNO INT PRIMARY KEY,--Department numberDname VARCHAR (14),--Department nameLOC VARCHAR (13)); --Department AddressINSERT into DEPT VALUES (' ACCOUNTING ', ' NEW YORK ');INSERT into DEPT VALUES ("DALLAS");INSERT into DEPT VALUES (' SALES ', ' CHICAGO ');INSERT into DEPT VALUES (+, ' OPERATIONS ', ' BOSTON ');--Employee tableCREATE TABLE EMP(EMPNO IN

, December 18, 2014 19:58:09 CST Small Code */CREATE TABLE Salgrade ( --Salary level grade int unsigned , --The minimum wage for this level losal int unsigned , -the highest wage for this level hisal int unsigned ) Engine=innodb; Create_bonus.sql /* Function: Create database Scott's bonus table, payroll time: Thursday, December 18, 2014 20:03:52 CST Small Code */CREATE TABLE bonus ( --employee name ename var char ($), --employee job j

of rows */ProcSQL Noprint; Select Count(*) into: NumRows fromSasuser.schedulewhere Year(begin_date)=2002;%Let NumRows=NumRows; / * Eliminate the blanks * /%Put there isNumRows Coursesinch 2002; SelectCourse_code, location, begin_date format=Mmddyy10. into: CRSID1-: Crsidnumrows,:p Lace1-:p Lacenumrows,:d ate1-:d ateNumRows fromSasuser.schedulewhere Year(begin_date)=2002 Order bybegin_date;%put _user_;quit;CreateOne macro variable that would Hold all values of a certain data set var

Some sub-queries select empno, ename from emp where mgr in (select empno from emp where job=‘MANAGER‘); select * from dept where Deptno not in ( select distinct deptno from EMP select * from dept where deptno not in (select deptno from emp); select empno, ename, sal from emp where mgr= (select empno from emp where ename=‘SCOTT‘); select * from emp where sal > 1.4* (select avg(sal) from emp); insert into dept(deptno, d

mydept; synonyms have been deleted. SQL> Select * frommydept; # #删除共有同义词, the private ones are still there DEPTNO dname LOC---------- -------------- ------------- TenACCOUNTING NEW YORK -DALLAS -SALES CHICAGO +OPERATIONS Bostonsql> Dropsynonym mydept; synonyms have been deleted.SQL> Select * frommydept;Select * frommydept*Section1line error: ORA-00942: Table or view does not existTo view a synonym view:Sql> Select * fromuser_synonyms; Synon

host:localhost:3306Source database:j121Target Server Type:mysqlTarget Server version:50022File encoding:65001date:2016-05-09 10:33:00*/SET foreign_key_checks=0;-- ------------------------------Table structure for ' dept '-- ----------------------------DROP TABLE IF EXISTS ' dept ';CREATE TABLE ' Dept ' (' DeptNo ' int (one) is not NULL,' dname ' varchar default NULL,' loc ' varchar (+) default NULL,PRIMARY KEY (' DeptNo ')) Engine=innodb DEFAULT charset=latin1;-- ------------------------------R

executed 3 times and 1 times respectively, indicating that the execution plan was reused.3.2 Execution of the following 3 statements select * person.address where addressid = 1 go select * from person.address Span style= "color: #0000ff;" >where addressid = 2 go select * from Person.Address where addressid = 3 go As a result, a plan cache is generated for each adhoc query, respectively3.3 Perform the following parameters query 2 timesexec sp_executesql n'select * from perso

[constraint constraint_def] [references Table2_name (column2_name)] [default Default_def],......);CREATE TABLE Tb_employee (pk_employee_id Number (4) primary key,ename VARCHAR2 (Ten),Job Varchar2 (9),Mgr Number (4),hiredate Date,sal Number (7,2),Comm Number (7,2),deptno Number (4)); CREATE TABLE Tb_department (PK_DEPARTMENT_ID Number (4) primary key,Dname VARCHAR2 (14),Loc VARCHAR2 (13)); CREATE TABLE Tb_salgra (PK_SALGRA_ID Number primary Key,Losal number,Hisal number); INSERT INTO Tb_departme