Oracle

CREATE OR REPLACE ProcedureSoa_getpager (p_pagesizeInt,--number of records per pageP_pagenoInt,--Current page number, starting from 1P_sqlcolsVarchar2,--Select ColumnsP_sqlfromVarchar2,--table name or join queryP_sqlwhereVarchar2,--query

A function in the database contains four parts: declaration, return value, function body, and exception handling. --Functions with no parameters Create or Replace function Get_user return VARCHAR2 is V_user VARCHAR2 (50); Begin Select

Additions and deletions to check the orthogonal connection to create a table:　　　　CREATE TABLE table_name (num int identified (+) not NULL,--identified self-incrementName VARCHAR2 () not NULL,--not null is not emptyAge VARCHAR2 (20),Sex VARCHAR2

Create or replace PROCEDURE CLEAR asTname varchar (200);BEGINtname:= ' immediate trace name Flush_cache ';------->> in this sentence, the function of single quotation marks is equivalent to an escape character, and one of the single quotes is

----Create data1.1. Create tables and insert data650) this.width=650; "src=" Http://common.cnblogs.com/images/copycode.gif "alt=" Copy Code "/>Create table district (  id         number (10)                    Not null,  parent_id  number

Create or replace procedure Sp_addprojectqj (RET out number,Flowid in number--process ID)AsCursor C_design isSELECT * from lc_vr_detail where lc_crm_visitreport_id = Flowid and Dd_status! = 2;C_row C_design%rowtype;V_ID number;BeginFor C_row in

In the system development process, it is necessary to query the data, most of the time, the amount of data queried from the database is large, the system page can not be fully displayed, and query all the data will affect the response speed of the

Oracle de-weightCreate TableTmp_table3 as (SELECTseqno from(SELECTT.seqno,rowid, row_number () Over(PARTITION byTitle, UInORDER bycreatetime) DUP fromCalendar_info TwhereIsdelflag= 0 andSpecialtype= 1

First, create data1.1. Create tables and insert dataCREATE TABLEDISTRICT (ID Number(Ten) not NULL, parent_id Number(Ten), NAMEVARCHAR2(255BYTE) not NULL);ALTER TABLEDISTRICTADD ( CONSTRAINTDISTRICT_PKPRIMARY KEY(ID));ALTER TABLEDISTRICTADD (

Today's repository is locked and checked, saying that it was logged wrong more than 10 times the user will be locked, there is the understanding lock and password operationTo activate the sqlplus in a non-link waySqlplus/nolog;Link the repository as

Example Download:Http://yunpan.cn/cLY4v5hdQeMY6 (Extract code: AE65)Grammar:Select ... from where //filterstart with //recursive starting pointConnect by ; Connection QualificationAttention:1,Prior placed on the child node side, it means that the

Note: Changes to the database only need to modify the view layerTwo different ways:(1) Configure in the Tnsname.ora file in the Oracle client directory that BIEE comes withCopy and paste the Admin folder under

If the system is a 7x24-hour running database, cold backup is unrealistic, and a hot backup is a way to back up a database in the case of a database run, using the Archivelog mode mode. The advantages and disadvantages of hot backup are as

Oracle index reconstruction, oracle Index I. Preface Oracle recommends that you re-create an index if the index depth exceeds 4 and the number of deleted index entries occupies at least 20% of the total number of existing index entries. Some people

ORACLE multi-Table query optimizationORACLE has a high-speed buffer concept. This high-speed buffer is used to store the executed SQL statements. Therefore, oracle has to do a lot of work when executing SQL statements, such as parsing SQL statements

Oracle Database grouping statistics by time, oracle statistics SQL statement used by Oracle to group statistics by TimeTable 1 is as follows: Number of days (exportDate) (amount) -------------- ----------- 14-2 month-08 20-3 month-08 2 14-4 month-08

Oracle SQL BASICS (1)-create and modify tables, oraclesql 1. Table creation statement Create table fdh_client_info ( Id varchar2 (50) primary key, Name varchar2 (30) not null, Sex varchar (1 ), Age number (3 ), Address varchar2 (300) ); 2. Modify

Oracle recursive query and Oracle recursive query1. Create data 1.1 create a table and insert data Create table district (id number (10) not null, PARENT_ID NUMBER (10), NAME VARCHAR2 (255 BYTE) not null ); alter table district add (CONSTRAINT

Differences between rownum and row_number in Oracle databases: rownumrow_number It is clear that for rownum, it is the number of the row returned from the query that is sequentially allocated by the oracle system. The first row is allocated with 1,

Atitit. database partition design attilax summary, atititattilax Atitit. database partition design attilax Summary   1. Partitioning is a dedicated folder (what) 1 2. Benefits of partitioning (y) 1 3. partition principle (whether to partition or