Remote connection to Oracle is troublesome. It usually takes the oracle client to be installed. You can use instantclient to easily connect to a remote Oracle database. 1. Create a Directory D: \ Oracle_Cleint to store related files. Create a
1. Error description Java. SQL. SQLException: ORA-0064: error occurred at recursive SQL level 1. ORA-06153: unable to extend table SYS. AUD $ by 8192 in tablespace SYSTEM.ORA-02002: error while writing to audit trail. ORA-00604: error occurred at
23. Examine the structure proposed for the TRANSACTIONS table:Name Null TypeTRANS_ID not null number (6)CUST_NAME not null VARCHAR2 (20)CUST_STATUS NOT NULL CHARTRANS_DATE NOT NULL DATETRANS_VALIDITY VARCHAR2CUST_CREDIT_LIMIT NUMBERWhich statements
Catalog Database:Catalog indirect: db2 catalog database on/db2sys [dir_name]Catalog remote: db2 catalog database as at node example: db2 catalog tcpip node NODESUN remote 192.168.1.1 server 50000 ostype aix db2 catalog db SUNDB as SUN at node
29. Which two statements are true regarding constraints? (Choose two .)A. A foreign key cannot contain NULL values.B. The column with a UNIQUE constraint can store NULLS.C. A constraint is enforced only for an INSERT operation on a table.D. You can
27. Which two statements are true regarding tables? (Choose two .)A. A table name can be of any length.B. A table can have any number of columns.C. A column that has a DEFAULT value cannot store null values.D. A table and a view can have the same
Select SYSDATE from dual t; -- system dateSelect TO_CHAR (SYSDATE, 'yyyy/MM/DD HH24: MI: ss') from dual t; -- format the dateSelect TO_DATE ('2014 18:28:20 ', 'yyyy/MM/DD HH24: MI: ss') from dual t; -- format the dateSelect sysdate, sysdate-interval
21. Examine the description of the EMP_DETAILS table given below:Name NULL TYPEEMP_ID NOT NULL NUMBEREMP_NAME not null VARCHAR2 (40)EMP_IMAGE LONGWhich two statements are true regarding SQL statements that can be executed on the EMP_DETAIL table?
6. Examine the structure of the SHIPMENTS table: Name Null Type PO_ID not null number (3) PO_DATE NOT NULL DATE SHIPMENT_DATE NOT NULL DATE SHIPMENT_MODE VARCHAR2 (30) SHIPMENT_COST NUMBER (8, 2) You want to generate a report that displays the PO_ID
22. You need to create a table for a banking application. One of the columns in the table has the following requirements:1) You want a column in the table to store the duration of the credit period.2) The data in the column shoshould be stored in a
24. Examine the structure proposed for the TRANSACTIONS table:Name Null TypeTRANS_ID not null number (6)CUST_NAME not null VARCHAR2 (20)CUST_STATUS not null VARCHAR2TRANS_DATE NOT NULL DATETRANS_VALIDITY INTERVAL DAY TO SECONDCUST_CREDIT_VALUE
I have created a new user named watson and granted the related priviledges as following: SQL> create user watson identified by watson; SQL> grant resource, connect, create session to watson; There will be an error happened when we use this new
8. View the Exhibit and examine the structure of the MERs table.Which two tasks wowould require subqueries or joins to be executed in a single statement? (Choose two .) (Question: A MERs table is provided for the question, asking which two tasks
Query page: Statement 1 has more than 10 times better performance, but it is hard to understand because it has more than one top keyword !!!! 1. Primary Key r_object_id within 1 s Select top 100 * from (Select all doc. r_object_id "objid", doc. name,
The environment used in this article is: win7_64 + Eclipse + mavenI. Preparations Download the java driver package Driver Pack: http://mvnrepository.com/artifact/org.mongodb/mongo-java-driver MongoDB http://www.mongodb.org/ Api:
By qx. zhongHangzhou 29 Jun 2014Development EnvironmentOS: Win8.1 x64JDK: 1.8 SEDB: MySQL 5.5 Lib: mysql-connector-java.jar1. Special correspondence between MySQL database data types and JDKThe following table lists only a few special value type
Note: 1. The fixed-length character type occupies more space than the non-fixed-length character type, but the fixed-length character type does not need to be processed during field value setting, therefore, the processing speed is faster.
PrefaceBodyPL/SQL(Procedure Language, Procedural Language) SQL 1999 a structured Language commonly used by major database vendors PL/SQL only supports Oracle databasesBasic syntaxMulti-line comment/**/single-line comment --PLSQL
5. Which SQL statements wocould display the value 1890.55 as $1,890.55? (Choose three .) A. SELECT TO_CHAR (1890.55, '$0G000D00') from dual; B. SELECT TO_CHAR (1890.55, '$9, 999v99') FROM DUAL; C. SELECT TO_CHAR (1890.55, '$99,999 d99') from dual; D.
Preface: Oracle is a typical C/S structure. The server provides oracle service instances, which are mainly used for database management, object management and storage, and data Storage, query, database resource monitoring, monitoring, and other