Database Administrator

-- Select t. rowid rid, t. lastdate from t_test t order by t. lastdate desc; -- obtain the maximum number of pages by page in step 2. select rownum rn, rid from (select t. rowid rid, t. lastdate from t_test t order by t. lastdate desc) where rownum

Internal procurement application (R12.2.3)-- USProgram: Requisition ImportShort Name: REQIMPORTApplication: PurchasingExecutable: POCIRM-- ZHS program: Import Application Abbreviation: REQIMPORT application product: procurement management system

Creating a sales order (R12.2.3)-- USProgram: Order ImportShort Name: OEOIMPApplication: Order ManagementExecutable: Order Import-- ZHS program: Import Order for short: OEOIMP application product: Order Management executable name: Order ImportPLSQL

Rman connection:Connect to the local database:1. First specify ORACLE_SID; -- if the database has only one instance, you do not need to specify it. rman is connected to a unique instance by default;> Set ORACLE_SID = ORCL2. Then rman target usr/pwd

1.1.1. ERROR 1786 (HY000) [Environment description] Msyql5.6.14 [Error message] An error occurred while executing create table... select: Db1 [test] [23:01:58]> create tablelgmnr_bak select * from lgmnr; ERROR 1786 (HY000): create table... SELECTis

For the following, I think this is desirable: 3) each field should be set as far as possible not to be empty. For some businesses such as the Order's warehouse picking time, it is required to wait until the warehouse picking scan to have a value;

1.1.1. ERROR 1665 (HY000) [Environment description] Msyql5.6.14 [Error message] An error is reported when an SQL statement is executed: ERROR 1665 (HY000): Cannot executestatement: impossible to write to binary log since BINLOG_FORMAT =

In reports, duplicate data can be basically not displayed. How can we achieve the following in SQL? a10a20b30b40b50Shown: a1020b304050 The SQL statement is as follows: create table #a (part varchar(10),price int)goinsert into #a

1. When the MySQL installation package of the msi version is last executed, it will die in step 3 and no response will be returned directly. This is because MySQL has been installed on the local machine before and is not uninstalled cleanly,

I recently forgot my mysql password. I learned four solutions online and recorded them. Method 1: use the set password commandMysql-u rootMysql> set password for 'root' @ 'localhost' = PASSWORD ('newpass ');Method 2: Use mysqladminMysqladmin-u root

Today, a developer asks a question about not exists. Let's make an experiment. Lab 1 SQL> select * from emp e1 where not exists (select 1 from emp e2 where e1.mgr = e2.empno );EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO------------------------------

Environment CentOS For Mysql 5.1 Prerequisites EPEL is installed. For detailed installation steps, see Http://blog.csdn.net/robinsonmhj/article/details/36184863 Machine list Machine IP Address Machine name 192.168.0.135

Building oracle11G DG in linux (2): Building a master database Environment Name Master Database Slave Database Host Name Bjsrv Shsrv Software Version RedHat performanise5.5, Oracle 11g 11.2.0.1 RedHat

Recently, a project was created to access the oracle database through VC odbc. It can run normally on my computer and cannot run on other computers because the oracle odbc driver is not available and the oracle Data source cannot be configured. Most

Problem PLSQL and Oracle have just been configured in the past two days. However, when data is inserted in PLSQL, a problem occurs. The table in PLSQL cannot display Chinese characters, and Chinese characters cannot be saved or output, the question

A transaction is a logical unit of work used to separate database activities. A transaction has a starting point and an ending point;When one of the following events occurs, the transaction starts: Connect to the database and execute the DML

Settings of the backspace and direction keys in SqlPlus In the just-installed Oracle, we will find that using SqlPlus is very poor, not only is the backspace key not easy to use, but also the direction key cannot call up history. There are several

14.Using the MERs table, you need to generate a report that shows 50% of each creditAmount in each income level. The report shocould NOT show any repeated credit amounts in each income level.Which query wocould give the required result?(Meaning: to

GFS solves the requirements of distributed file systems in some business scenarios. It is natural that some services are not convenient to use only file systems. They need distributed database systems. BigTable is generated by Google to meet its

4. Which two statements are true regarding single row functions? (Choose two .) A. They a ccept only a single argument. B. They can be nested only to two levels. C. Arguments can only be column values or constants. D. They a lways return a