By John Watson, Roopesh Ramklass
A absolutely built-in research method for OCA examination 1Z0-051
Prepare for the Oracle qualified affiliate Oracle Database 11g: SQL basics I examination with aid from this specific Oracle Press consultant. In each one bankruptcy, you will discover tough workouts, perform questions, a two-minute drill, and a bankruptcy precis to spotlight what you may have realized. This authoritative consultant may also help you cross the attempt and function your crucial on-the-job reference. Get entire insurance of all OCA ambitions for examination 1Z0-051, including:
SQL decide on statements
- Restricting and sorting data
- Single-row functions
- Conversion capabilities and conditional expressions
- Group functions
- Displaying information from a number of tables
- Set operators
- DML and DDL statements
- Schema objects
On the CD-ROM:
- One complete perform examination that simulates the particular OCA exam
- Detailed solutions and explanations
- Score record functionality overview tool
- Complete digital book
- Bonus examination to be had loose with on-line registration
Read or Download OCA Oracle Database 11g SQL Fundamentals I Exam Guide (Exam 1Z0-051) PDF
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Extra info for OCA Oracle Database 11g SQL Fundamentals I Exam Guide (Exam 1Z0-051)
Best Practices for Creating an Oracle Database Best Practice Reasoning Ensure that the SYSTEM tablespace is locally managed. Doing this enforces that all tablespaces created in this database are locally managed. Use the REUSE clause with caution. Normally, you should use it only when you’re re-creating a database. The REUSE clause instructs Oracle to overwrite existing files, regardless of whether they’re in use. This is dangerous. Create a default temporary tablespace with TEMP somewhere in the name.
Rsp file. In other words, I’m using all the default values already contained within the response file. ora file in the ORACLE_HOME/network/admin directory and starts a default listener. Connecting to a Database through the Network Once the listener has been configured and started, you can test remote connectivity from a SQL*Plus client, as follows: $ sqlplus user/pass@'server:port/service_name' In the next line of code, the user and password are system/foo, connecting the oracle12c server, port 1521, to a database named o12c: $ sqlplus system/foo@'oracle12c:1521/o12c' 39 Chapter 2 ■ Implementing a Database This example demonstrates what is known as the easy connect naming method of connecting to a database.
Sql 33 Chapter 2 ■ Implementing a Database If it’s successful, you should see the following message: Database created. ■■Note See Chapter 23 for details on creating a pluggable database. If any errors are thrown while the CREATE DATABASE statement is running, check the alert log file. Typically, errors occur when required directories don’t exist, the memory allocation isn’t sufficient, or an OS limit has been exceeded. If you’re unsure of the location of your alert log, issue the following query: SQL> select value from v$diag_info where name = 'Diag Trace'; The prior query should work even when your database is in the nomount state.