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ROWID VS ROWNUM IN ORACLE
 
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This Video explains the difference between ROWID and ROWNUM using real project examples. ROWID provides the unique physical address where the row is being stored. ROWNUM indicates the order in which the data was returned from the select query.
Views: 2556 Tech Coach
HOW TO IDENTIFY AND DELETE DUPLICATE ROWS USING ROWID AND GROUPBY IN ORACLE SQL
 
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This video demonstrates examples on how to find and delete duplicate records from a table. The video gives simple and easy to understand examples on finding duplicate records from a table using group by and having clause and row_number function. It also shows the ways in which duplicates can be deleted very efficiently using the rowid of that record. You can get the code from our website http://oracleplsqlblog.com/FullBlog/FullBlog/21
Views: 9354 Kishan Mashru
SQL: pseudo columns (Rowid/Rownum)
 
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In this tutorial, u'll learn the difference between rowid & rownum..
Views: 30750 radhikaravikumar
Oracle Rowid, RowNum and row_number
 
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Oracle Rowid, RowNum and row_number... Explained in detailed...
Views: 5925 CONNECT TO LEARN
ORACLE SQL INTERVIEW QUESTION : HOW TO SELECT ODD OR EVEN ROWS FROM A TABLE IN ORACLE
 
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This video tutorial answers the frequently asked interview question, how to select only odd or even records in oracle sql, after watching this video you will understand more on the topic and will be able to answer this interview question with a lot of confidence.
Views: 4060 Kishan Mashru
ORACLE SQL AND PL/SQL INTERVIEW QUESTION : DIFFERENCE BETWEEN ROWID AND ROWNUM WITH EXAMPLE
 
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In this video tutorial, we discuss the pseudo column rowid and rownum in oracle sql. After watching this video you would be able to understand the basic difference between rowid and a rownum pseudo columns of oracle database. Rowid returns the exact location of the row in the database, hence whenever you retrive a record based on rowid, it is the fastest retrival possible. Whereas for each row returned by a query, the ROWNUM pseudocolumn returns a number indicating the order in which Oracle selects the row from a table or set of joined rows. For more such videos visit out complete list of videos on www.youtube.com/c/kishanmashru Visit or blog www.oracleplsqlblog.com
Views: 1760 Kishan Mashru
Difference between Rowid and Rownum
 
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Difference between Rowid and Rownum If you like this video please share and subscribe channel on youtube for more videos Useful Pl/sql Books http://goo.gl/XMy0tt Watch More... What is Parameterized Cursor in Oracle https://www.youtube.com/watch?v=JMKwHlVi6-A What is autonomous transaction in Oracle. https://www.youtube.com/watch?v=gyvFajpfoWE What are Constraints available in Oracle. https://www.youtube.com/watch?v=WivhdLXQklQ What is Mutation Error and How to avoid mutation. https://www.youtube.com/watch?v=CbWNCyW18Bs 5 Effective way to delete Duplicate rows https://www.youtube.com/watch?v=1wtTtnc87Oc What is Difference between Delete and Truncate https://www.youtube.com/watch?v=7b6wQ3Qumgg
Views: 10815 Ram Gupta
how to use "ROWNUM" in oracle
 
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this video shows how we can display a range of records in ORACLE DATABASE using SQL
Views: 1782 P-Square Technologies
Using Rownum to find out Nth record from First, Last and within a range in a table.
 
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Using Rownum to find the first nth record and last nth record and in between record in emp table. This is the most frequesntly questions ever asked in interviews.
Views: 3287 Kiranjit Parida
Oracle sql Interview Question : How to change rows to column
 
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This video tutorial talks about the frequently asked oracle sql interview question of changing rows to the column. Based on the given scenario, we are asked to change the presentation of data in a table with 3 rows and 2 column to 3 columns and 2 rows. Decode Function in oracle https://youtu.be/YUAjPMjqMws Pivot and unpivot in oracle https://youtu.be/6s0DI1YcWIM
Views: 14415 Kishan Mashru
ROWNUM vs ROWID in Oracle Explain with Examples
 
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Oracle ROWNUM and ROWID
Views: 41 Adam Tech
How to delete duplicate records from a table in oracle
 
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Let c how to remove duplicates from a table..I have one table here 'student' It has two duplicate records. 3 joe 4 robert These two records has duplicates. So I have to remove them. I can remove them using rowid functionality using one subquery. You can give different column names in GROUP BY clause. to identify the duplicate record. You can give just primary key values also. Duplicate rows are deleted now... Query used in video: delete from student where rowid not in (select min(rowid) from student group by sno,sname); Thanks for watching...:)
Views: 15105 WingsOfTechnology
ROWID - DBArch Video 32
 
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In this video you will understand what is ROWID in an Oracle Database, where is it stored and what are its components. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 3336 Ramkumar Swaminathan
Difference between Row Number, Rank and Dense Rank | Oracle SQL Tutorial | Mr.Murali
 
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►For Registration : https://goo.gl/r6kJbB ►Call: +91-8179191999 ► Visit Our Website: http://nareshit.in/ http://nareshit.com/ ► About NareshIT: "Naresh IT is the Best Software Training Institute for Hadoop, Salesforce, AWS, DevOps, Sprak, Data Science, Python, Tableau, RPA ,Java, C#.NET, ASP.NET, Oracle, Testing Tools, Silver light, Linq, SQL Server, Selenium, Android, iPhone, C Language, C++, PHP and Digital Marketing in Hyderabad, Chennai and Vijayawada, India which provides online and classroom training classes" ►For Registration : https://goo.gl/r6kJbB ►Call: India- 8179191999, USA- 404-232-9879 Email: [email protected] ►Our Online Training Features: 1.Training with Real-Time Experts 2.Industry Specific Scenario’s 3.Flexible Timings 4.Soft Copy of Material 5.Share Video's of each and every session. Check The Below Links: ►For Course Reg : https://goo.gl/r6kJbB ► Subscribe to Our Channel: https://goo.gl/q9ozyG ► Circle us on G+: https://plus.google.com/NareshIT ► Like us on Facebook: https://www.facebook.com/NareshIT ► Follow us on Twitter: https://twitter.com/nareshitech ► Visit Our Website: http://nareshit.in/ http://nareshit.com/
Views: 9563 Naresh i Technologies
SQL Tutorial : How To Delete Duplicate Records in SQL Oracle
 
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SQL Tutorial : How To Delete Duplicate Records in SQL Oracle SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 3257 TechLake
Oracle Indexes - Beginner
 
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Oracle Indexes - Beginner
Views: 65265 Chris Ostrowski
How to Delete the Duplicate Records in oracle
 
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http://oracletemple.blogspot.in/ How to Delete the duplicate records How delete the duplicate rows ? Tips: - Always take extra caution while deleting records. 1. First identify the duplicates using select. 2. Double verify those are actual ‘duplicates’ or not 3. Take backup if necessary 4. Apply commit only if you are sure. -~-~~-~~~-~~-~- Please watch: "difference between delete and truncate" https://www.youtube.com/watch?v=7b6wQ3Qumgg -~-~~-~~~-~~-~- ------------------------------------------------------------------ Below is link for Useful Pl/SQL Books http://goo.gl/XMy0tt ---------------------------------------------------------- Watch More... What is Parameterized Cursor in Oracle https://www.youtube.com/watch?v=JMKwHlVi6-A What is autonomous transaction in Oracle. https://www.youtube.com/watch?v=gyvFajpfoWE What are Constraints available in Oracle. https://www.youtube.com/watch?v=WivhdLXQklQ What is Mutation Error and How to avoid mutation. https://www.youtube.com/watch?v=CbWNCyW18Bs 5 Effective way to delete Duplicate rows https://www.youtube.com/watch?v=1wtTtnc87Oc What is Difference between Delete and Truncate https://www.youtube.com/watch?v=7b6wQ3Qumgg
Views: 22451 Ram Gupta
SQL query to find first record and last record in single query
 
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SQL query to find first record and last record in single query
Views: 8849 SQL Guru
SQL with Oracle 10g XE - Using LIKE for Wildcards with SELECT
 
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In this video I use the LIKE command rather than an equals sign to place a condition on my query to allow the use of wildcards within my criteria. When using SQL with Oracle you will need to use the percent sign as the "all characters" wildcard. I perform several queries using the wildcard as describe the results. This video is part of a series of videos with the purpose of learning the SQL language. For more information visit Lecture Snippets at http://lecturesnippets.com.
Views: 4182 Lecture Snippets
How to Remove duplicates from Table using SQL query(Oracle) (rowid)
 
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How to Remove duplicates from Table using SQL query(Oracle) (rowid).. SQL Analysis
Views: 6566 vishwanth suraparaju
Oracle tutorial : Pseudo columns in Oracle PL SQL (pseudo column)
 
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Oracle tutorial : Pseudo columns in Oracle PL SQL ( pseudocolumn ) oracle tutorial for beginners rownum in oracle This video will show you what is Pseudo columns in Oracle PL SQL. Pseudo columns are likes ROWNUM, ROENUM, ROWID, NEXTVAL,SYSDTAE , USER etc. pseudocolumn examples Oracle tutorial : Pseudo columns in oracle Oracle supports several special-purpose data elements that are not actually contained in a table, but are available for use in SQL statements. Here is a partial list of pseudo-columns in Oracle a)CURRVAL : When using Oracle SEQUENCE values, the pseudo-column CURRVAL returns the current value of the sequence. for example: schema.sequence_name.CURRVAL b)NEXTVAL :When using Oracle SEQUENCE values, the pseudo-column NEXTVAL returns the next value of the sequence and causes the sequence to increment by one. for example: schema.sequence_name.NEXTVAL c)ROWNUM:ROWNUM returns a number indicating the order in which a row was selected from a table. d)ROWID: ROWID returns the rowid (binary address) of a row in a database table. e)USER :This pseudo-column will always contain the Oracle username under which you are connected to the database. f)SYSDATE:This pseudo-column will contain the current date and time. This column is a standard Oracle DATE datatype. The value represents the current time on the server not the client. For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 1436 Tech Query Pond
20. SQL for Beginners - ROWID & ROWNUM (Hindi)
 
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Welcome to JavaScript for Beginner Series. In this video, you'll learn about Redirect and Page Print techniques in Javascript. So, let's get started. JavaScript Playlist: https://www.youtube.com/playlist?list=PLysly0KYnAY2tLfvp7bCL3c-psMH9Czs6 HTML Playlist: https://www.youtube.com/playlist?list=PLysly0KYnAY2_-PqGSrVTgBpVshxpqQlw Mobile Responsive Form using HTML & CSS: https://www.youtube.com/watch?v=SECTfL3R0B0&t=0s&index=1&list=PLysly0KYnAY3TW2A2ey5tdRK_UMRWw2Xu SQL Playlist: https://www.youtube.com/playlist?list=PLysly0KYnAY2q8cobbotVbn36XOskQR2F FACEBOOK PAGE https://www.facebook.com/ishwaracademy/
Views: 192 Ishwar Academy
Oracle Database11g tutorials 8 || SQL DISTINCT with multiple columns |SQL Distinct with Two columns
 
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This SQL tutorial and Oracle database 11g tutorial for beginners will show how to use SQL DISTINCT keyword with SQL Select clause. This Video is in the continuation of previous video on SQL distinct with one column. In this video we will see How to use SQL distinct with multiple columns and SQL distinct with two columns Tool used in this tutorial is SQL developer. This tutorial series is part of SQL expert exam certification training. If you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts Email [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish From The Code makers
Views: 98769 Manish Sharma
Oracle Interview Questions: Dual table in Oracle
 
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This video is the 2nd video in the video series Oracle Interview questions.It explains dual table in oracle along with the advantages that it offers. Below tutorial explains how you can generate test data in oracle using oracle table and hierarchical queries. https://www.youtube.com/watch?v=Lf8m9lXNPnc&t=25s
Views: 2286 Tech Coach
SELECT statement Processing in an Oracle Database - DBArch  Video 7
 
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You will learn from this video how a SELECT statement is processed in an Oracle Database. You will learn about the a Parse, Execute and Fetch phases in a select statement. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 26005 Ramkumar Swaminathan
Row Number function in SQL Server
 
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sql server row_number example sql server row number by partition sql server row_number over partition by order by In this video we will discuss Row_Number function in SQL Server. This is continuation to Part 108. Please watch Part 108 from SQL Server tutorial before proceeding. Row_Number function Introduced in SQL Server 2005 Returns the sequential number of a row starting at 1 ORDER BY clause is required PARTITION BY clause is optional When the data is partitioned, row number is reset to 1 when the partition changes Syntax : ROW_NUMBER() OVER (ORDER BY Col1, Col2) Row_Number function without PARTITION BY : In this example, data is not partitioned, so ROW_NUMBER will provide a consecutive numbering for all the rows in the table based on the order of rows imposed by the ORDER BY clause. SELECT Name, Gender, Salary, ROW_NUMBER() OVER (ORDER BY Gender) AS RowNumber FROM Employees Please note : If ORDER BY clause is not specified you will get the following error The function 'ROW_NUMBER' must have an OVER clause with ORDER BY Row_Number function with PARTITION BY : In this example, data is partitioned by Gender, so ROW_NUMBER will provide a consecutive numbering only for the rows with in a parttion. When the partition changes the row number is reset to 1. SELECT Name, Gender, Salary, ROW_NUMBER() OVER (PARTITION BY Gender ORDER BY Gender) AS RowNumber FROM Employees Use case for Row_Number function : Deleting all duplicate rows except one from a sql server table. Discussed in detail in Part 4 of SQL Server Interview Questions and Answers video series. Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/rownumber-function-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/rownumber-function-in-sql-server_30.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 80123 kudvenkat
Part 4   Delete duplicate rows in sql
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-4-delete-duplicate-rows-in-sql.html In this video, we will discuss deleting all duplicate rows except one from a sql server table. SQL Script to create Employees table Create table Employees ( ID int, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (2, 'Mary', 'Lambeth', 'Female', 30000) Insert into Employees values (2, 'Mary', 'Lambeth', 'Female', 30000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) The delete query should delete all duplicate rows except one. Here is the SQL query that does the job. PARTITION BY divides the query result set into partitions. WITH EmployeesCTE AS ( SELECT *, ROW_NUMBER()OVER(PARTITION BY ID ORDER BY ID) AS RowNumber FROM Employees ) DELETE FROM EmployeesCTE WHERE RowNumber ] 1
Views: 330662 kudvenkat
Find Duplicate Rows in SQL - Select Statement Tutorial
 
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Find duplicate row values in a field or multiple fields in SQL Server table with this tutorial. Do this for one column, or multiple columns. Uses SQL Server Management Studio for the demonstration.
Views: 42874 Edward Kench
SQL Interview : Display Odd or Even rows in Oracle SQL
 
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5/2=? 2)5(2 --quotient or result 4 ___ 1 -- remainder Mod(5,2)=1 Display ODD or EVEN rows from a table Here I have customers table with customer_id and customer_name Mod() function returns reminder eg Mod(5,2)=1 Mod(4,2)=0 when we pass even number it returns zero when divided by 2 and vice versa select row_number() over (order by customer_id) as row_no from customers this query returns the row number select * from (select ROW_NUMBER() over (order by customer_id) as row_no from customers)s1 where mod(s1.row_no,2)=1 Gives Odd rows Final: ODD rows: select * from (select c.*,ROW_NUMBER() over (order by customer_id) as row_no from customers c)s1 where mod(s1.row_no,2)=1 EVEN rows: select * from (select c.*,ROW_NUMBER() over (order by customer_id) as row_no from customers c)s1 where mod(s1.row_no,2)=0
Views: 251 Data Disc
How to transpose column to row in sql
 
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Hi friends today we will learn how to transpose column data into row of table. #transposecolumntorow Oracle database Unbeatable,Unbreakable Platform..
Views: 15892 Oracle World
Delete duplicate records from a table in Oracle SQL.
 
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How to search or delete duplicate records using SQL or PL SQL. Using select or delete clause to search or delete duplicate rows from tables in PL SQL.
Views: 1901 Subhroneel Ganguly
how to create rowid in sql server
 
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SQL SERVER, SELECT statement with auto generate row id RowID or RowNumber for each rows in SQLServer
Views: 52 C Plus+
4 of 6  SQL Advanced with Oracle  - Inline subquery and rownum
 
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This video gives an example of an inline subquery, a query in the FROM clause of another query. We also see how we might use the rownum option to limit how many rows of output we get. (4 of 6) There is also an "SQL Fundamentals" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 10559 Jennifer Kreie
Базы данных для начинающих. Внутренние индексы SQL таблицы. Таблицы WITHOUT ROWID в SQLite.
 
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Помощь проекту: WMR: R288272666982 WMZ: Z293550531456 Яндекс.Деньги: 410011531129223 Рубрика SQLite на сайте: http://zametkinapolyah.ru/zametki-o-mysql/sqlite/ Текстовая версия: http://zametkinapolyah.ru/zametki-o-mysql/chast-11-7-indeksy-v-bazax-dannyx-sqlite-indeksaciya-tablic-v-sqlite3-algoritm-b-dereva-v-bazax-dannyx.html Паблик блога в ВК: https://vk.com/zametkinapolyah Тематическая группа в ВК: https://vk.com/zametki_bd -- Столбец ROWID или внутренние индексы таблицы в базе данных SQLite -- У каждой таблицы базы данных SQLite по умолчанию есть внутренний индекс, который называет ROWID. Иногда этот индекс совпадает с первичным ключом таблицы PRIMARY KEY, иногда не совпадает, но ROWID есть у каждой таблицы. Если говорить просто и понятно, то ROWID – это дополнительный столбец, который есть у любой таблицы SQLiteи является индексом для данной таблицы. -- Помимо того, что ROWID – это индекс, это еще один способ поддержание целостности данных. Давайте разберемся с индексом ROWID в базах данных SQLite. ROWID–это 64-разрядное число, которое однозначно идентифицирую любую строку в базе данных SQLite. -- Создадим таблицу без индексов и наполним ее данными CREATE TABLE table1(a, b ,c ,d); INSERT INTO table1 (a, b, c , d) VALUES (1, 2, 3, 4); INSERT INTO table1 (a, b, c , d) VALUES (1, 2, 3, 4); INSERT INTO table1 (a, b, c , d) VALUES (1, 2, 3, 4); INSERT INTO table1 (a, b, c , d) VALUES (1, 2, 3, 4); -- посмотрим содержимое таблицы SELECT*FROM table1; -- SQLite не показывает столбец ROWID, если не обращаться к нему по имени, давайте изменим наш запрос SELECT SELECT rowid, a, b, c, d FROM table1; SELECT rowid, a FROM table1; -- Чтобы первичный ключ совпадал с ROWID, нужно создать таблицу следующим образом CREATE TABLE table1(x INTEGER PRIMARY KEY ASC, y, z); CREATE TABLE table2(x INTEGER, y, z, PRIMARY KEY(x ASC)); CREATE TABLE table3(x INTEGER, y, z, PRIMARY KEY(x DESC)); -- Обратите внимание: если столбец PRIMARY KEY объявить как-нибудь по-другому, то значения PRIMARY KEY и ROWID совпадать не будут. -- Таблицы WITHOUT ROWID в базах данных SQLite, таблицы без внутренних индексов -- В SQLite можно создавать таблицы без столбца ROWID, то есть без внутреннего индекса. Такой подход несет незначительные плюсы: иногда это ускоряет выборку данных из базы данных и немного уменьшает объем базы данных. Если вы решили создать таблицу без ROWID в SQLite, то вам необходимо сделать две вещи: во-первых, у таблицы должен быть обязательно первичный ключ, во-вторых, вам необходимо использовать ключевую фразу WITHOUT ROWID. CREATE TABLE IF NOT EXISTS wordcount( word TEXT PRIMARY KEY, cnt INTEGER ) WITHOUT ROWID; INSERT INTO wordcount (word, cnt) VALUES ('word1', 2); INSERT INTO wordcount (word, cnt) VALUES ('word2', 5); INSERT INTO wordcount (word, cnt) VALUES (NULL, 5); CREATE TABLE IF NOT EXISTS wordcount1( word TEXT PRIMARY KEY, cnt INTEGER ); INSERT INTO wordcount1 (word, cnt) VALUES (NULL, 5); -- Теперь у таблицы не будет столбца ROWID. Еще одной особенностью таблиц WITHOUT ROWID является то, что ограничение уровня столбца AUTOINCREMENT работать не будет. Первичный ключ таблицы WITHOUT ROWID ни при каких обстоятельствах не может иметь значение NULL, если вы попробуете добавить NULL в столбец PRIMARY KEY таблицы WITHOUT ROWID, то SQLite выдаст ошибку. Из-за особенностей работы таблиц WITHOUT ROWID, разработчики SQLiteрекомендуют использовать такие таблицы в тех случаях, когда: Вы используете составные первичные ключи или когда первичный ключ не является целым числом, а имеет другой тип данных. Если вам нужно повысить скорость работы таблицы с первичным ключом INTEGER, создавайте таблицу без внутреннего индекса, этим вы ускорите выборку и уменьшите объем базы данных. Если таблицы имеет индекс ROWID и индекс в виде INTEGER PRIMARY KEY, то SQLIte делает перебор двумя циклами: первый цикл идет по столбцу ROWID, второй цикл идет по столбцу INTEGER PRIMARY KEY, хотя значения этих столбцов совпадают. Если в таблицах хранится небольшое количество строк, то таблицы без индекса (WITHOUT ROWID) будут работать несколько быстрее, чем со столбцом ROWID. Если вы проектируете базу данных и хотите ее оптимизировать, то вам не стоит задумываться о том, какие таблицы использовать: ROWID или WITHOUT ROWID, на этапе разработки и проектирования. Тесты лучше всего проводить после того, как база данных будет спроектирована и реализована. Так как никаких отличий между таблицами с ROWID и без нет, за исключением тех, что описаны выше, нет.
Hierarchical Queries in Oracle (CONNECT BY)
 
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This video demonstrates one of the ways to query hierarchical data from Oracle. For more information see: https://oracle-base.com/articles/misc/hierarchical-queries Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Arjen Visser Blog: http://blog.dbvisit.com/ Twitter: https://twitter.com/dbvisit Website: http://www.dbvisit.com/ Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 27087 ORACLE-BASE.com
SQL Tutorial - 24: The TOP and LIMIT Clauses
 
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In this tutorial we'll see how we can use the LIMIT Clause in the MySQL environment to control the number of records that are returned in the result set of a query.
Views: 42972 The Bad Tutorials
Intermediate Oracle 11g - 3. Specialized Queries
 
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This Course can only be played using a subscription. You can play only first 3 chapters for free. Click Here to avail a subscription This Intermediate FT course expands on the Introduction to Oracle 11g course. It gives you a more detailed grass roots knowledge of Oracle SQL and Oracle PL/SQL. Author and expert Gavin Powell covers a wide range of topics including many types of queries, expressions, and statements. He also explores sequences, synonyms, views, materialized views, user access and security, working with indexes, and the basics of programming with PL/SQL. As with the introductory course, this intermediate course is not focused on Oracle Certification but will give you a good start towards some more advanced aspects of coding SQL and PL/SQL. Parts: 01. Composite Query Syntax. 02. Using Composite Queries pt. 1. 03. Using Composite Queries pt. 2. 04. Hierarchical Queries. 05. Hierarchical Query Syntax. 06. Hierarchical Family Trees pt. 1. 07. Hierarchical Family Trees pt. 2. 08. Flashback Query Syntax. 09. Flashback Query Pseudocolumns. 10. Using Flashback Queries pt. 1. 11. Using Flashback Queries pt. 2.
Views: 1144 Free Training
Delete Statement in Sql  | Delete in Sql | Delete Query in Oracle | Delete Multiple Row
 
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Oracle   joins Part -1 by dinesh
 
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Query for nth position of sal  in SQL ?
 
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Hi friends in this video I'll show you how to write a query to find nth position of record or salary from table. Oracle database Unbeatable,Unbreakable Platform..
Views: 1668 Oracle World
Random number &  Random String in Oracle/ عربي
 
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oracle sql Random number & Random String in Oracle select dbms_random.random from dual; select dbms_random.value from dual; select dbms_random.value(1,10) from dual; select round(dbms_random.value(1,10) ) from dual; /* 'u', 'U' - returning string in uppercase alpha characters 'l', 'L' - returning string in lowercase alpha characters 'a', 'A' - returning string in mixed case alpha characters 'x', 'X' - returning string in uppercase alpha-numeric characters 'p', 'P' - returning string in any printable characters. */ select dbms_random.STRING('L',15) from dual; select dbms_random.STRING('U',10) from dual; select dbms_random.STRING('A',10) from dual; select dbms_random.STRING('X',20) from dual; select dbms_random.STRING('P',20) from dual;
Views: 762 khaled alkhudari
ROWNUM - so simple yet so much confusion!
 
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ROWNUM just assigns a counter to the rows in your query result. So why did so many people get our simple quiz on rownum wrong ? blog: https://connor-mcdonald.com twitter: https://twitter.com/connor_mc_d Subscribe as new tech videos come every week!
Views: 590 Connor McDonald
SQL: Explain Plan for knowing the Query performance
 
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In this tutorial, you'll learn how to compare queries to know the better performance query..
Views: 96203 radhikaravikumar
How to Delete Duplicate Record from Table
 
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Hi friends today i will show you a basic sql query to delete th duplicate entry from table usinf rownum & rowid. #DeleteDuplicateRecord Oracle database Unbeatable,Unbreakable Platform..
Views: 2618 Oracle World