Oracle

DeclareType ref_cur_variable isREFcursor; Cur_variable ref_cur_variable; V_empno Scott.emp.empno%type; V_ename Scott.emp.ename%type; V_sqlvarchar2( -) := 'Select T.empno, t.ename from Scott.emp t';begin OpenCur_variable forV_sql;

-- PackageCREATE OR REPLACEPackage test_141215 isTYPE type_ref isRecord (enameVARCHAR2( -), SAL Number(Ten)); TYPE T_type_ref is TABLE ofType_ref; FUNCTIONRetrieve (V_namevarchar2)RETURNt_type_ref pipelined;ENDtest_141215;--Package BODYCREATE OR

Declarer_emp scott.emp%RowType; cursorCur_emp is SelectT.* fromscott.emp t;begin Opencur_emp; ifCur_emp%IsOpen ThenDbms_output.put_line ('Is open ...'); End if; LoopFetchcur_emp intor_emp; ifCur_emp%Found ThenDbms_output.put_line ('found .

Transferred from: http://www.cnblogs.com/sc-xx/archive/2011/12/03/2275084.htmlCursor cursor_name is select_statement--For loop cursors--(1) Defining cursors--(2) Defining a cursor variable--(3) using the For loop to use this cursorDeclare --Type

CREATE TABLEEmployees_demo (employee_id Number(6), first_nameVARCHAR2( -), last_nameVARCHAR2( -)CONSTRAINTEmp_last_name_nn_demo not NULL, emailVARCHAR2( -)CONSTRAINTEmp_email_nn_demo not NULL, Phone_numberVARCHAR2( -), hire_date

First, sql> @?/rdbms/admin/catupgrd.sqlDescription:? Represents Oracle_home, which may be represented as $ORACLE _home in Linux.@ means execute scriptReference: http://candon123.blog.51cto.com/704299/381841Second, upgrade from 10.2.0.1 to 10.2.0.4:

Oracle Study--"Ora-00845:memory_target not supported in this system" errorSystem environment:Operating system: RedHat EL6 (64)Oracle:oracle 11g R2Fault case:Adjusting memory parameters under Oracle 11GR2: Memory_targetSql> Show parameter MemName

When configuring Oralce client or server side problems, consider the following steps:1 Check the following files:Client side:D:\app\Administrator\product\11.2.0\client_3\network\adminListener.oraTnsnames.oraServer side:D:\app\Administrator\product\11

In the case of a large record, the not in query will certainly be slow and unacceptable. Like what:SELECT A.* fromWHERE A.user_id not in (SELECT B.user_id from Table_b)the best way to find it now is to check it in seconds. For example, query the

--Querying all data dictionariesselect * from dictionary;--Data dictionaryA data dictionary is where Oracle stores information about a database and uses it to describe the data.For example, the creator information of a table, create time information,

‘***********************************************************************************************' Oracle Union Injection Tool by lone water around the city' Applies to the injection point where union can be used‘**************************************

Requirements: Asset repair table in the same asset may be repaired to continue to apply for maintenance, this time the maintenance status needs to determine the maintenance status according to the most recent repair times, so duplicate data under

Requirement Description: Adds a field to a table that already exists in the test environment and manually adds data to this column of a subset of the data in the table, and now wants to be able to add the field to the formal environment and copy the

Process function ProgrammingPractical purpose(1) Master the basic function of stored procedure and storage function advanced database object.(2) Master the creation, modification, viewing and deletion of stored procedures and stored

1.Oracle, the operation of returning the next primary key when MySQL is insertedXML codeOracle:SELECT Seq_role. Nextval as ID from DUALInsert into ROLE (ID, NAME, CREATE, MODIFY) VALUES (#{id}, #{name}, Sysdate, sysdate)Note: the "id" in the

About storing m in Oracle Database & #179; (cubic meters) -------------- Note: The following operations are performed in rhel vnc, not in secureCRT. -------------------------- Cause: If it is executed in secureCRT, m3 will be shown as: m Lu. See

Data cleansing Note: String-to-date: Timestamp-caused problems Background] During data extraction, the source "time significance" field data is in "timestamp format" and the field type is string type. However, the target end requires that the data

Oracle learning path (5) ----- General oracle data type operations1. Some common Operators Operator Meaning = Equal <> ,! = ,~ =, ^ = Not equal Less > Greater

Oracle Learning (18) [DBA]: Distributed DatabaseWhat is a distributed database? L data is physically stored on multiple nodes of the network, logically being a whole.The independence of distributed databases l the independence of distributed data

Solution to integrity conflict when updating primary key values restricted by foreign keys in Oracle stored procedures1. Background Although we do not advocate modifying the primary key in database operations, there is indeed such a business demand