Oracle

Some of the fields in our database tables may be empty, and the incoming query parameters may be empty.For exampleSelect from Pos_supplier_mappings wherein (3324,4520067,4520097);The query result set is as follows

/** * Call function get data table ID value * @param tableName Table name * @return * @throws SQLException */public string Callfun (string tableName) t Hrows SQLException {Connection conn = connectionfactory.getconnection (); CallableStatement

Ora-12516:tns: The listener could not find an available process ' error that meets the protocol stack requirements, to resolve the problem first look at the number of existing processes in the database, whether the parameter processes has been

Declare--type definitionstrSQL string (500);V_errorcode number; --Variable to hold the error message codeV_errortext VARCHAR2 (200); --Variable to hold the error message textCursor C_eventstateIsSelect Campaignid,phonenumber,policynumber from

Oracle database, after entering the login name and password, you are prompted with the following error:ora-01033:oracle initialization or shutdown in progress;The first solution:The first step is to run cmd--note "Open the DOS window as an

DeclareForint number (18);Seqnum number (18);BeginFor forint in 1..20000 loopSelect Seq_forum.nextval to Seqnum from dual;Insert into Frm_answer (Answerid, QuestionID, ParentID, Answertype, Createuserid, CreateDate, Updateuserid, UPDATEDATE, S Tatus,

Original:Http://tech.it168.com/oldarticle/2006-04-02/200604021512359.shtmlHttp://www.cnblogs.com/m-cnblogs/archive/2012/02/23/2364906.html1. Create a test stored procedure:sql> Create or Replace procedure Proc_test (P1 in varchar2,p2 off varchar2)

Truncate DDL statements, delete data in the table faster than delete, and all self-increment fields start counting again, delete data-preserving table structure, delete data does not enter rollback segment, cannot be recovered.    Example: Truncate

Build table:　　CREATE TABLE STU ( ID number (3), name VARCHAR2 (10))　　CREATE TABLE EXAM ( eid integer NOT null, stuid integer NOT NULL, coursename VARCHAR2 (NO) null,score FLOAT)　　INSERT into Stu (ID, name) of values (3, '

1. When a parent-child relationship exists between rows in a table, the parent-child relationship between rows and rows can be queried by using Connect by querySelectLpad ('-',( Level-1),'-')||Empno asTempno, Ename,mgr, Level, Decode ( Level,1,1)

A long time without SQL statements, seemingly into the new company, and back to the three years ago in the SQL era, write a lump of SQL well, also when the return of the past knowledge.The following is a statistic of February dataSelect T.telno as

. Net connection to oracle Database --- ShinepansFAQ: 1. the reference solution is missing. Add reference: using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Data.OracleClient;using

ORA-07445 & ORA-00108 error cases, Since ORACLE's UAT test environment is required, After cloning the Virtual Machine and modifying the IP address, the startup instance encountered a ORA-07445 & ORA-00108 error. CASE Environment:   SQL> select *

Oracle Database questions Table Structure Description: Create table employee (id number (10) not null, -- employee id salary number (10, 2) default 0 not null, -- salary name varchar2 (24) not null -- name ); -- enable the console to output set

Six Modes of oracle learning getting started Series Six of oracle learning starter Series Mode In the previous article, we learned to record the database structure, memory structure, and processes in the ORACLE database. The space is too large. Take

Common Oracle errors and common oracle errors 1. java. SQL. SQLException: ORA-01000: exceeds the maximum number of opened cursors Step 1:View the current number of cursors of the database. Configure slqplus: show parameter open_cursors; Step 2:View

Oracle Learning (13): Data DictionaryThe data dictionary structure includes:-basic table: Description of database information, which can only be modified by the database server-User table: User-Defined tableData Dictionary naming rules

Implementation of SQL statements for ORACLE database-based cyclic table creation and cyclic storage Creation I. OverviewIn actual software development projects, we often encounter the need to create multiple database tables or stored procedures of

An example of using the sqlldr command to import data to an Oracle database table: sqlldroracleCSV: Comma-Separated Values (Comma-Separated Values) abbreviation. sqlldr is a multi-line text file with Comma-Separated fields. It is short for SQL *

Application structure of Oracle Database Application structure of Oracle Database With the development of network technology, Oracle databases have been widely used in various fields. The application system structure based on Oracle databases mainly