How do i backup a table in oracle?
Date created: Sun, Mar 7, 2021 4:53 PM
Date created: Mon, Mar 8, 2021 7:33 PM
- On Windows: Click Start, point to Programs (or All Programs), point to Oracle Database 11g Express Edition, and then select Backup Database.
- On Linux with Gnome: In the Applications menu, point to Oracle Database 11g Express Edition, and then select Backup Database.
- Start SQL*Plus and log in as the SYS user, connecting as SYSDBA: $ sqlplus /nolog SQL> CONNECT SYS/SYS_password AS SYSDBA.
- Enter a command similar to the following, where account is the user account that you want to unlock and password is the new password:
MySQL supports full-text and hash indexing only. Oracle uses more indexes than just these, including Bitmap, function-based, Partitioned, and so forth. Oracle is better for enterprise deployments, while MySQL is suited for small to medium scale. MySQL is free, while Oracle requires a licensing fee.
You can create one table from another by adding a SELECT statement at the end of the CREATE TABLE statement:
- CREATE TABLE new_tbl [AS] SELECT * FROM orig_tbl;
- mysql> CREATE TABLE bar (UNIQUE (n)) SELECT n FROM foo;
- CREATE TABLE foo (a TINYINT NOT NULL) SELECT b+1 AS a FROM bar;
- Although not required for the certification exam, the xfs file system is quite important for single instance Oracle installations. If you are storing datafiles on a cooked file system, as opposed to ASM, you should probably consider using xfs, rather than any of the ext* file systems.
- Once you have created and compiled a PL/SQL procedure, you can run it using Oracle SQL Developer. Perform the following steps: 1 . Right-click on EMP_LIST in the left navigator and select Run. 2 . This invokes the Run PL/SQL dialog.
To get names of all synonyms from Oracle database or from an specific table you can use: USER_SYNONYMS, ALL_SYNONYMS, DBA_SYNONYMS, USER_OBJECTS. Privileges may be required to query certain tables or views. The most commonly used to list synonyms in a database are USER_SYNONYMS and USER_OBJECTS.
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Go to a different directory from the one on which you installed Oracle's Instant Client and enter the following command: sqlplus [email protected]/tiger select user from dual ; If this test is successful, you are ready to use the run-time.
mysqldump -u [username] –p[password] [database_name] > [dump_file.sql] [username] - A valid MySQL username. [password] - A valid MySQL password for the user. [database_name] - A valid Database name you want to take backup. [dump_file.
Example: Oracle CURRENT_DATE() function The following statement shows the current date in 'DD-MON-YYYY HH24:MI:SS' format : SQL> ALTER SESSION SET NLS_DATE_FORMAT = 'DD-MON-YYYY HH24:MI:SS'; Session altered.
Oracle stores unquoted column names in uppercase. The column names in a select statement are not case sensitive unless quoted.
You can store JSON data in Oracle Database using columns whose data types are VARCHAR2, CLOB, or BLOB. The choice of which to use is typically motivated by the size of the JSON documents you need to manage: Use VARCHAR2 (4000) if you are sure that your largest JSON documents do not exceed 4000 bytes (or characters) Foot 1Footref 1.
Oracle VM VirtualBox is a free, open source, cross-platform application for creating, managing and running virtual machines (VMs). Virtual machines are computers whose hardware components are emulated by the host computer.
Show MySQL Tables To get a list of the tables in a MySQL database, use the mysql client tool to connect to the MySQL server and run the SHOW TABLES command. The optional FULL modifier will show the table type as a second output column.
At a Linux prompt type env. Look for $ORACLE_SID. Or type echo $ORACLE_SID.
– Set the amount of memory for Oracle In-Memory Column Store (which is a part of SGA): ALTER SYSTEM SET inmemory_size=60000M SCOPE=SPFILE; Note, the required size of the In-Memory pool depends on the raw size of the segments you want to load into In-Memory Store and the actual segment compression rates.
Error ORA-01555 contains the message, “snapshot too old.” This message appears as a result of an Oracle read consistency mechanism.... If this occurs, you may encounter error ORA-01555 because the results outputted by Oracle must contain data as it appeared at 1:00PM before changes were made by the other user.
To uninstall Oracle , follow these steps: Go to Services and make sure that all Oracle services are stopped. Invoke the Oracle Universal Installer (OUI) to uninstall the software. Go to Start->Run and type 'regedit' to invoke the registry editor. Navigate to HKEY _LOCAL_MACHINESoftware and delete the Oracle folder.
the distinct in oracle is there is no repetition of data in a query
Start Oracle Net Manager. See Also:... In the navigator, expand Directory or Local > Service Naming. Select the net service name or database service. Choose Command > Test Net Service. Testing assumes that the database and listener are running.... Click Close to dismiss the Connect Test dialog box.
Connect to the database you want to backup by clicking on it under the MySQL connections.... Click on "Data Export" under the "Management" tab on the left side bar. You will get a list of available databases....
With Oracle 10g and above, yes, so long as they haven't been purged.
A view uses a query to pull data from the underlying tables. A materialized view is a table on disk that contains the result set of a query. Materialized views are primarily used to increase application performance when it isn't feasible or desirable to use a standard view with indexes applied to it.
5 Answers Open your SQL command line and type the following: SQL> connect / as sysdba. Once connected,you can enter the following query to get details of username and password:... This will list down the usernames,but passwords would not be visible.
To create the standby database over the network on the standby server , start up the standby database in NOMOUNT mode: 8. On the primary server , issue the RMAN command and connect as sysdba: 9. Log in to the primary server and switch the logfile: 10. Start the recovery process on the standby server : 11.
From MS Excel, there is nothing you can create. You can save an Excel file in various formats, that might make it easier to import the data into Oracle.
The Oracle INSTR function is used to search string for substring and find the location of the substring in the string. If a substring that is equal to substring is found, then the function returns an integer indicating the position of the first character of this substring.
The below post explains the steps to determine Oracle HTTP Server version installed on the Linux server. Steps to determine Oracle HTTP Server Version. Navigate to /bin directory , Execute the command./httpd -version to determine Oracle HTTP Server version. OHS sever version details will be displayed as shown below ,
The Oracle / PLSQL REGEXP _ INSTR function is an extension of the INSTR function. It returns the location of a regular expression pattern in a string. This function, introduced in Oracle 10g, will allow you to find a substring in a string using regular expression pattern matching.
Overview of Microsoft Programming Languages. Oracle offers a variety of data access methods from COM-based programming languages, such as Visual Basic and Active Server Pages.
Select table, click right mouse button and choose Alter table... option. It will open a new tab in the main pane (right-hand side of the screen) with the editor. You can edit table description in Comments field on the top (blue rectangle).
How can i import. sql file to oracle 11g. I have sqldeveloper tool. Thanks in Advance. Open --> File --> /locationofyourfile/yourfile. sql. @ Physical path of sql file. eg. If my file is on c: and file name is beckup. sql. Then command will be as follows (On console - sqlplus):
How to create a Test Table in MySQL. Go to the Windows Start menu, choose Run, type mysql -u root -p, and press Enter. The program will then prompt you for the password. When the MySQL , Monitor starts, it provides its own prompt. At this prompt ( mysql >), you type commands used to create tables , explain tables , insert data, select data, and so on.
In SSMS, in Object Explorer, connect to the instance of Database Engine that contains the database to be modified. In Object Explorer, expand the Databases node and then expand the database that will contain the new table. In Object Explorer, right-click the Tables node of your database and then click New Table.
You can query v$session for the job name to see if it is still executing and abort on postpone the task (using the sleep command) until it completes.
Can we use any SQL statement with Execute Immediate? Any SQL statement or PL/SQL block which returns single row of results can be used with Execute Immediate.
To get the Offering to the Oracle item, you first have to complete the Gateway Between Worlds bounty. You also get it from Petra Venj. However, before you do that, you’re going to have to collect forty Dark Fragments.
Excellent communication skills - The Oracle professional is the central technical guru for the Oracle shop.... Formal education - Many employers require Oracle professionals to have a bachelor's degree in computer science or information systems.... Real-world experience - This requirement is the catch-22 for newbie- s who possess only an OCP certificate....
How to import a MySQL database backup ¶. Login to the control panel. Go to phpMyAdmin. Find the new database in the list and click Connect Now. Click Import in the top bar. Select the database backup file to import and click Go.
Restore SQL Database From Backup File using SQL Server Management Studio. Open SQL Server Management Studio from the Start Menu and connect to the proper instance of the Database Engine. From the Restore Database window, select From device option to locate the backup sets to restore. Now under Select a page pane, click on Option.
How many contacts are available in the Oracle EBS customer list? There are 49,342 contacts available in the Oracle EBS customer list. How many companies are using Oracle EBS? The number of companies using Oracle EBS is 21,656.
To install SQL Developer simply unzip the downloaded file. With SQL Developer users can connect to any supported Oracle Database, for all Oracle database editions including Express Edition. Before starting this tutorial, you should:
A data dictionary is a centralized repository of information about data,. The purpose of a data dictionary in oracle is to indicate a more general software utility than a catalogue.
There are no specified prerequisites for the Oracle DBA training, if you do not have prior knowledge individuals will be given additional course work to complete.
Week numbers in Oracle How to get the week number from a date To get the ISO week number (1-53) from a date in the column datecol, use SELECT TO_CHAR (datecol, 'IW') FROM …. To get the corresponding four-digit year, use SELECT TO_CHAR (datecol, 'IYYY') FROM ….
First, specify the name of table that you want to insert after the INSERT INTO keywords. Second, specify a comma-separated column list inside parentheses after the table name. Third, specify a comma-separated list of row data in the VALUES clause. Each element of the list represents a row.
When you show a date value in output, the format depends on the DATEFORMAT option. The default format is a 2-digit day, a 3-letter month, and a 2-digit year ; for example, 03MAR97. The text for the month names depends on the MONTHNAMES option.
Oracle Assets copies new assets and transactions you made in your corporate book during one accounting period in the current fiscal year into the open period of your tax book Typically most of organization will be using both the corporate and tax types of asset books.
Name. INSERT -- create new rows in a table. Synopsis. [ WITH [ RECURSIVE ] with_query [,...] ] INSERT INTO table_name [ ( column_name [,...] ) ]... Description. INSERT inserts new rows into a table. One can insert one or more rows specified by value expressions, or zero or more rows resulting from a query.
Create the global database name by setting both the DB_NAMEand DB_DOMAINinitialization parameters. "Determining the Global Database Name" Familiarize yourself with the initialization parameters contained in the initialization parameter file. Become familiar with the concept and operation of a server parameter file.
In Oracle General Ledger, an accounting period is closed after all the accounting transactions have been completed for the period. It is used to control journal entry and journal posting from sub ledger as well as GL.
Oracle Enterprise Manager. Oracle Enterprise Manager (OEM or EM) is a set of web-based tools aimed at managing software and hardware produced by Oracle Corporation as well as by some non-Oracle entities.
You can only have one primary key, but you can have multiple columns in your primary key. You can also have Unique Indexes on your table, which will work a bit like a primary key in that they will enforce unique values, and will speed up querying of those values. RB. A table can have multiple candidate keys.
A set of books identifies a company or fund within Oracle Applications that shares a common chart of accounts structure, calendar, and functional currency.
pls tell me how to run oracle developer suite 10g forms using interent explorer 8 in windows xp3
A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS).
How Oracle Database Uses the Listener File ( listener.ora) The listener.ora file is the configuration file for a listener. It can include the protocol addresses it is accepting connection requests on, a list of the database and other services it is listening for, and control parameters used by the listener.
Oracle-11g meaning Version 11g of the Oracle Database, which included built-in testing for changes, the capability of viewing tables back in time, superior compression of all types of data and enhanced disaster recovery functions. The "g" stood for "grid computing ," which supports clusters of servers that are treated as a single unit.
Go-live is the time at which something becomes available for use. In software development, for example, go-live is the point at which code moves from the test environment to the production environment. As a verb, go-live means to make such an event happen.
then Reports.) expand Data Dictionary Reports. expand About Your Database. click Version Banner.
Here are the steps: Prepare the CSV file to have the fields in the same order as the MySQL table fields. Remove the header row from the CSV (if any), so that only the data is in the file. Go to the phpMyAdmin interface. Select the table in the left menu. Click the import button at the top. Browse to the CSV file.
If you are going to use the date column in the WHERE clause of you select, THEN Indexing on that date column will enhance the performance Hope this helps
Tables contain actual data. whereas a view is a stored query.
Create a Front - End Application Using Oracle Visual Builder Oracle Visual Builder supports all stages of the development workflow, from creating to staging and publishing an application. You don't have to follow an specific order in Oracle Visual Builder for building the artifacts in your application and defining the building blocks.
TRIGGER - You cannot t give grants for trigger. There is no such thing. Triggers fire automatically whenever the trigger event is done on the table on which the the trigger is created. You only need to grant privilege on the table.
FID should create one user name and grant access permission for that user name (FID) to execute that procedure..FOR EG: if the FID name is SUPPORT, user will execute my procedure through SUPPORT name. –
By default, Oracle identifiers (table names, column names, etc.) are case-insensitive. You can make them case-sensitive by using quotes around them (eg: SELECT * FROM "My_Table" WHERE "my_field" = 1 ). SQL keywords ( SELECT , WHERE , JOIN , etc.)
A tablespace in an Oracle database consists of one or more physical datafiles. A datafile can be associated with only one tablespace and only one database. Oracle creates a datafile for a tablespace by allocating the specified amount of disk space plus the overhead required for the file header.