oracle sql data modeler

Oracle SQL clob queries duplicate data. Multi-field COMPARE function data clob fields cannot be group by or distinct during query. Therefore, it is very troublesome to find duplicate data based on clob, most people on the Internet propose to use DBMS_LOB.SUBSTR to solve the

How to import data to oracle database using SQL * loader, loaderoracle When you need to import massive data into the database, the efficiency of using the graphical interface tool is very low. Here we will briefly introduce how to import the database using SQL * loader.

Transfer from http://www.jiejingwang.com 2002-10-24 shortcut Network========================================================== =System Environment:1. Operating System: Windows 2000 Server, 128 MB of machine memory2. Database: Oracle 8i R2 (8.1.6) for NT Enterprise Edition3. installation path: C: OracleSteps:1. Open Microsoft Excel 20002. File (f) → new (n) → workbook →3. input the following data, and the st

1. Query table name:SELECT table_name from User_all_tables;2. Assemble statistical SQL statements:1 >select ' SELECT ' | | table_name | | ' As TableName, COUNT (*) from ' | | table_name | | ‘ ; ' As Exectutesql from User_all_tables;2> select ' Select ' | | table_name | | ' As TableName, COUNT (*) from ' | | table_name | | ' Union ' as exectutesql from User_all_tables;3. Copy the assembled Exectutesql executionselect * from ( 第二步2> 执行的结果复制到这里 删除最后一个 un

Oracle Database Programming: Change Data and management items in PL/SQL change data and manage items in PL/SQL: returning clause of DML statements: to obtain the information after the insert, update, and delete statements are executed, you can add the returning clause after

How do I update SQL statements for column data between oracle tables ?, Oraclesql Table A (id, name, age, home_adders, phone_number) and Table B (id, name, adders, number, the two tables have two fields with the same id and name, and can uniquely identify A row. Update the adders and number information in table B to the home_adders and phone_number fields in Ta

One, add dataINSERT statement INSERT INTO TABLE_NAME (Name of field, field name) VALUES (value1,value2)1. Add values to all fields in the tableINSERT into UserInfoVALUES (1, ' xxx ', ' 123 ', ' [email protected] ', sysdate)2. Add values to the fields established in the tableINSERT into UserInfo (ID,USERNAME,USERPWD)VALUES (2, ' yyy ', ' 123 ')CREATE TABLE Userinfo1(ID number (6,0),RegDate Date Default Sysdate)INSERT into USERINFO1 (ID)VALUES (1)Second, copy the table data1. Copy all when creatin

Label:CREATE TABLE "Brand_relation"("ID" number (10,0) is not NULL ENABLE,"CATID" number (10,0) is not NULL ENABLE,"brand_id" number (10,0) is not NULL ENABLE,PRIMARY KEY ("ID"));CREATE SEQUENCE "Br_id_seq" NOCACHE;CREATE INDEX "Br_catid" On "Brand_relation" ("CATID");CREATE INDEX "br_brand_id" On "Brand_relation" ("brand_id");CREATE OR REPLACE TRIGGER ' BR_ID_TRG ' before INSERT on ' brand_relation ' referencing old as ' old ' new as ' new ' for each ROW ENABLEDECLAREV_newval Number (12): = 0;V

One of the most important preparations in performance testing is preparing test data. Before performing a performance test, make sure that you have enough data in your test database to test it. For data preparation, sometimes I use LoadRunner to generate the appropriate script to prepare the data, which has one advanta

The oracle SQL statement reads data from this month and month. [SQL] -- from Monday to Sunday in China is from Sunday to Saturday select to_char (sysdate-1, 'D') from dual; -- Take the day of the week in China minus one week in foreign countries -- [SQL] -- select * from

Tags: input file format alt. com HTTP share picture com open Oracle1. Excel file for importing dataNote: Excel column names and data table column names must be the same, and Excel files Sheet2 and Sheet3 can be deleted1) Excel file format2) Data table format2. Open PL/SQL, find tools---> ODBC importer3. Select Excel file, enter user/password4. Click Connect to fi

Oracle SQL converts a varchar type data into multiple rows of Results records. Today, when I create a report, I want to use an SQL query to query the final results. However, I encountered some problems during implementation, one field I found is varchar type, and a combination of multiple IDs (for example, 1, 2, 3, and

The WMS warehouse management system implements the "sending and receiving daily report" data query function. SQL statement: Oracle [SQL] www.2cto.com SELECT AA. PRODUCT_CNAME, AA. PRODUCT_ID, AA. PRODUCT_CODE, AA. MODEL, AA. MASTER_UNIT, AA. OTHER_UNIT, AA. PACKAGE_RATIO, AA. CUSTOMER, SUM (week) AS QTY_OUT_TODAY, QTY_

In many cases of development, for convenience or commonality of consideration, we first consider the SQL Server database for development, but sometimes the customer's production environment is Oracle or other database, then we need to transform the corresponding data structure and data script to the corresponding datab

Create a user in Oracle under Windows Create a user under Oracle to give permission to start SQL Plus in the terminal.Create user + password (User: sa password: Lenovo) sql> create user sa identified by Lenovo; Assign user permissions individually Sql> Grant create

Tags: note server log and family exp Baidu Man connectionConnect to an Oracle database using PL/SQL and export the data for backup and import recovery This operation Baidu a search a large, today to organize the project of the past to backup a bit of the database, try to export the data for backup and import recovery;

Previously obtained Oracle database backups are typically DMP files, creating tablespaces and users directly using IMP or IMPDP import.This time I encountered a special situation, the other side of the data provided to me is the use of Sqlplus exported SQL script file, is exported from the Linux system, because it is difficult to let the other side to provide

Sql*loader is an Oracle data-loading tool that is typically used to migrate operating system files to an Oracle database. Sql*loader is a large data The Load method that the warehouse chooses to use. Under NT, the

= value 2, ... WHERE condition; If the modified value n is not assigned or defined, the original record content will be cleared to null, preferably a non-null checksum before modification; The value n exceeds the length of the definition, and it is best to check the length before inserting. Precautions:A. The above SQL statements add row-level locks to the table, confirm that after the completion of the process must be combined with the end of the o

recently encountered a requirement to migrate data from a subset of the tables in Oracle to a SQL Server database. But the structure of these tables is somewhat different. method one, using the SQL Develper Data Export tool, export the