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Learn how and why equivalent SQL statements can have a dramatic effect on performance. Certified Master J Watson demonstrates...See all our free Oracle Database tutorials at http://skillbuilders.com/free-oracle-tutorials. The Oracle Database cost-based optimizer (CBO) should recognize equivalent SQL statements and re-write them into the most efficient form. Well, nothing is perfect - not even Oracle Database. Sometimes the way you write your SQL can have a dramatic effect on performance. Presented by John Watson, Oracle Certified Master DBA. Some experience with SQL tuning is expected.
Views: 1928 SkillBuilders
SQL Tutorial for Beginners in Hindi and English SQL AND/OR Operator with Example in Oracle 11g Database
Views: 44015 Easy Engineering Classes
Join Discussion: http://www.techtud.com/video-lecture/exist-function-sql IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
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In this tutorial we'll check out a few examples of the LIKE Operator along with the wildcard characters (% and _).
Views: 63329 The Bad Tutorials
SQL Tutorial for beginners in hindi and English SQL Like Operator, Use of % and _ operator on Oracle 11g Database
Views: 32770 Easy Engineering Classes
SQL Course ,Explaining What all the Comparison operator available in Oracle database or I will show you How To Use Comparison Operators in SQL SELECT Statement,How To Use greater than Operator, less than Operator, greater than or equal Operators, less than or equal, equal Operators, not equal Operators in SQL SELECT Statement. In this series we cover the following topics: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. Follow me on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/lrnwthr/ Twitter: https://twitter.com/LrnWthR
Views: 65 EqualConnect Coach
Watch Oracle Master John Watson demonstrate why not all equivalent SQL statements are created equal. John demonstrates how SQL statements that produce equivalent result sets can have radically different response times, why this happens and common solutions. All five new video tutorials are available at SkillBuilders.com/Oracle-Tutorials 1. Introduction including the First Demonstration 2. SubQuery Factoring 3. Star Transformations 4. Aggregations 5. Summary Some experience analyzing Oracle execution plans is required to get the most from this lesson.
Views: 15259 SkillBuilders
http://www.sqltrainingonline.com SQL Null or Empty - How to Check for Null or Empty Column in SQL Server - SQL Training Online You can download the sample table script at http://www.sqltrainingonline.com/how-to-filter-for-sql-null-or-empty-string/. In this video, I show you how to filter for a SQL null or empty string. It can be difficult to filter a null because you can't simply compare with an equal sign. You have to use a special IS NULL clause to make the filter work. I also show you how to combine both the SQL Null and Empty String together in a special trick with the isnull SQL Server function. I use SQL Server 2012 to demonstrate the technique. Let me know what you think by commenting or sharing on twitter, facebook, google+, etc. If you enjoy the video, please give it a like, comment, or subscribe to my channel. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 17669 Joey Blue
Watch Oracle Master John Watson demonstrate why not all equivalent SQL statements are created equal. John demonstrates how SQL statements that produce equivalent result sets can have radically different response times, why this happens and common solutions. All five new video tutorials are available at SkillBuilders.com/Oracle-Tutorials 1. Introduction including the First Demonstration 2. SubQuery Factoring 3. Star Transformations 4. Aggregations 5. Summary Some experience analyzing Oracle execution plans is required to get the most from this tutorial.
Views: 6460 SkillBuilders
Difference Between IN and EXISTS Operators in 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: 706 TechLake
Conditional Operators in Oracle Database | Oracle Tutorials for Beginners Oracle Tutorials for Beginners Conditional Operators in Oracle Database Conditional Operators in Oracle Database Conditional Operators in Oracle SQL Greater than, Less than in Oracle Equal to in Oracle Not Equal to Operator in Oracle conditional operator in oracle conditional operator in oracle conditional operator in oracle Oracle Conditional Operators
Views: 319 Oracle PL/SQL World
Join Discussion on: http://www.techtud.com/video-lecture/understanding-set-comparison-operators IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 11791 Techtud
Oracle Tutorial for Beginners Oracle Tutorial for Beginners Oracle Database Introduction Oracle SQL Introduction How to retrieve data using SELECT statement SELECT and WHERE Clause in Oracle SELECT and WHERE Clause in Oracle SQL SELECT , INSERT ,UPDATE,DELETE IN Oracle SELECT IN ORACLE SELECT in oracle WHERE Clause in Oracle INSERT in oracle sql where clause multiple sql where and sql where like having clause in sql sql where clause multiple conditions sql where not equal sql update sql order by
Views: 864 Oracle PL/SQL World
أهلا بكم فى درس جديد من سلسلة دروس أوراكل ديفلوبر شرح SQL فى درس اليوم نتحدث عن WHERE Clause & Comparison & Logical Operators & Rules of Precedence
Views: 3572 Ask Gad
Oracle Operators in Oracle Database | Oracle Tutorial for Beginners Oracle Operators BETWEEN AND . NOT BETWEEN AND IS NULL and IS NOT NULL LIKE Operator in Oracle NOT LIKE Operators in Oracle IN and NOT IN Oracle SQL Oracle tutorials for Beginners oracle query between two timestamps oracle between inclusive oracle sql between two dates with time oracle between exclusive sql between dates sql between datetime sql between inclusive or exclusive between clause in oracle for date oracle not in vs not exists oracle not exists in condition in oracle oracle sql not in subquery oracle not in null if not exists in oracle not equal to in oracle not like in oracle how to select null values in oracle oracle case is null oracle compare null values in where clause oracle sql not null or empty oracle is not null oracle case when not null then how to handle null in case statement in oracle is null in oracle not like in oracle with multiple values oracle not like wildcard oracle sql like multiple values if not in oracle pl sql sql query not like multiple values how to pass parameter in like operator in oracle regexp_like in oracle oracle not equal
Views: 390 Oracle PL/SQL World
Learn a predictable and repeatable methodology for tuning Oracle SQL statements. Just four steps that you should always follow when tuning an SQL statement. (Note this video does not contain examples of how to apply the four steps, just what the steps are.) Oracle Certified Master John Watson presents. John concludes with a brief overview of how SkillBuilders SQL tuning course provides the information you need to apply the four steps. Learn more about SkillBuilders SQL Tuning course http://skillbuilders.com/oracle-sql-tuning-training 1. What is Oracle doing? (explain plan, trace) 2. Why is Oracle doing it that way? (analyze the execution plan) 3. Is there a better way? Test! 4. If there's a better way, push the CBO towards the better way.
Views: 12865 SkillBuilders
The WHERE clause is used to filter records. The WHERE clause is used to extract only those records that fulfill a specified condition. sql where clause multiple sql where like sql where not equal sql order by sql statement order sql update not in operator in sql sql where in list 1 2 3 4 5 6 7 8 9 10 Next
Views: 14 Computer/Programming Insect
sql series playlist ===)https://www.youtube.com/watch?v=-ixZ4YQ4Uco&list=PL7nQsQekG89yNvQUtbPa4gLeZlprYUr54 SQL Select Top SQL Min and Max SQL Count, Avg, Sum SQL Like SQL Wildcards SQL In SQL Between SQL Aliases SQL Joins SQL Inner Join SQL Left Join SQL Right Join SQL Full Join SQL Self Join SQL Union SQL Group By SQL Having SQL Exists SQL Any, All SQL Select Into SQL Insert Into Select SQL Null Functions SQL Comments SQL Database SQL Create DB SQL Drop DB SQL Create Table SQL Drop Table SQL Alter Table SQL Constraints SQL Not Null SQL Unique SQL Primary Key SQL Foreign Key SQL Check SQL Default SQL Index SQL Auto Increment SQL Dates SQL Views SQL Injection SQL Hosting SQL References MySQL Functions SQL Server Functions MS Access Functions Oracle Functions SQL Operators SQL Data Types SQL Quick Ref SQL Quiz SQL Quiz SQL AND, OR and NOT Operators The SQL AND, OR and NOT Operators The WHERE clause can be combined with AND, OR, and NOT operators. The AND and OR operators are used to filter records based on more than one condition: The AND operator displays a record if all the conditions separated by AND is TRUE. The OR operator displays a record if any of the conditions separated by OR is TRUE. The NOT operator displays a record if the condition(s) is NOT TRUE. sql multiple or sql like not in operator in sql sql order by sql update sql not in sql where not equal
Views: 18 Computer/Programming Insect
Take the Complete Course at: www.jobreadyprogrammer.com You'll learn about using operators in the WHERE clause
Views: 3802 Imtiaz Ahmad
Welcome to tech talk tricks and in this video, we will learn about and or and not query in SQL. So stay tuned and watch how to use and or and not operator in SQL. #TechTalkTricks #RanaSingh WHERE conditions can be combined with AND, OR, and NOT. A WHERE clause with AND requires that two conditions are true. A WHERE clause with OR requires that one of two conditions is true. A WHERE clause with NOT negates the specified condition. A WHERE clause with AND: SELECT column-names FROM table-name WHERE condition1 AND condition2 A WHERE clause with OR: UPDATE table-name SET column-name = value WHERE condition1 OR condition2 A WHERE clause with NOT: DELETE table-name WHERE NOT condition sql where multiple values not in operator in sql sql where not equal sql where like sql where multiple conditions not in sql query sql logical operators symbol in sql At tech talk trick channel you will learn all kind of technology like language,tutorials and amazing computer tips and tricks. ************************************************** Follow Tech Talk Trick on Facebook https://www.facebook.com/techtalktricks ************************************************** Follow tech talk trick on Twitter https://twitter.com/tecktalktrick ************************************************** Follow Tech Talk Tricks on Instagram https://www.instagram.com/techtalktricks ************************************************** Subscribe tech talk tricks on YouTube https://www.youtube.com/techtalktricks ***************************************************
Views: 995 TechTalkTricks
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Views: 10374 DbVidya
Welcome Tech Talk Tricks and in this video, we will learn between operator in SQL. So stay tuned and watch what is between operator in sql. #TEchTalkTricks #RanaSIngh This SQL tutorial explains how to use the SQL BETWEEN condition with syntax and examples. So watch: https://www.youtube.com/watch?v=M7YGtBJS0Xg WHERE BETWEEN returns values that fall within a given range. WHERE BETWEEN is a shorthand for greater than equal to AND less than equal to. BETWEEN operator is inclusive: begin and end values are included. The SQL BETWEEN condition allows you to easily test if an expression is within a range of values (inclusive). It can be used in a SELECT, INSERT, UPDATE, or DELETE statement. Syntax The syntax for the BETWEEN condition in SQL is: expression BETWEEN value1 AND value2; Parameters or Arguments expression A column or calculation. value1 and value2 These values create an inclusive range that expression is compared to. Note The SQL BETWEEN Condition will return the records where expression is within the range of value1 and value2 (inclusive). oracle sql between dates sql between inclusive or exclusive sql not between sql between datetime between in sql server date between in mysql sql query between two dates and times sql query date range from current date 1.How to make your computer start up & shutdown faster https://www.youtube.com/watch?v=3kSjizTn7MM 2.How To Trace Name/Address/Location Of UnKnown Number Easily https://www.youtube.com/watch?v=kyYfOP66l1Y 3.How to make webpage print friendly https://www.youtube.com/watch?v=YPR7JHA0Apk 4.How to Lock Folder Without any software https://www.youtube.com/watch?v=BhEduEM9pws 5.How to enable undo in gmail https://www.youtube.com/watch?v=g1fOwTQ3zJg 6.How To Recover All Deleted, Formatted, Damaged Files https://www.youtube.com/watch?v=fl3DX6RBoqo 7.How to make Bootable USB pendrive for Windows https://www.youtube.com/watch?v=IXJE859pxWg 8.How to Unlock Android Pattern or Pin Lock without losing data https://www.youtube.com/watch?v=yN4JnAo7SvU 9.how to track a cell phone location for free https://www.youtube.com/watch?v=0kCLyPJ8cM0 10.How to fix or repair pendrive using cmd https://www.youtube.com/watch?v=ny4VhM2TsWM 11.how to get wifi password of neighbour https://www.youtube.com/watch?v=LCFn6IjvnMM 12.How to Send an Email In Future https://www.youtube.com/watch?v=oo84GRHe5Vg 13.How To Setup Wifi Hotspot Without Any Software in Windows 10 https://www.youtube.com/watch?v=6Bzyvs44G50 14.how to download YouTube video without any software https://www.youtube.com/watch?v=RDfDGY3Be9Y 15.HOW TO SET SHUTDOWN TIMER IN WINDOWS OS (HINDI) https://www.youtube.com/watch?v=Vb5Ou7sc4uk 16.How To convert Word File (Any File Format) to PDF file (Any File Format) https://www.youtube.com/watch?v=Nd0YtV9MwqQ 17.How To Hide Drive of Computer Using Command Prompt (Hindi) https://www.youtube.com/watch?v=AddrPKRGdSk
Views: 543 TechTalkTricks
http://www.sqltrainingonline.com SQL Date Comparison - How to filter Datetime in SQL Server - SQL Training Online In this video, I show you how to do a SQL Date Comparison in SQL Server when your Datetime has an actual time in it. I also include the latest trick that will make this easier if you are using SQL Server 2008 or SQL Server 2012. How do you compare a Datetime in SQL Server? A SQL Datetime stores both Date and Time. So when you are filtering using the SQL Where clause, you have to know if you Datetime is storing the time also. Let's take a look at the employee table in SQL Training Online Simple DB The column we are looking at is the hire date. I want to go after the person who was hired on February, 22 2005. So, I use the following SQL. select * from employee where hire_date='02/22/2005' Now, this works because we don't have any times stored in this column. But, if I change the record from 2005-02-22 00:00:00.000 to 2005-02-22 08:22:25.000 and rerun the query, you see that I don't get any results. That is because the value of 02/22/2005 is really 2005-02-22 00:00:00.000 and I just changed the hire_date to include a time other than 00:00:00.000. So, I have to tweak my query to use a greater than and less than sign. This works. But, to really understand what is going on, let me show you what SQL Server really sees. There are other ways, and in this StackOverflow article you can read more about these other ways. But, I want to point out a few. If you are working in SQL Server 2005 or earlier, the following is supposed to be the fastest performing way to do this. select datediff(dd,0, hire_date),* from employee where dateadd(dd,0, datediff(dd,0, hire_date)) = '2005-02-22' But, if you are working in SQL Server 2008 or SQL Server 2012, they have introduced an actual Date datatype that doesn't include the Time portion. Since this is the case, you can use the CAST function to remove the time from the Datetime. Here is the SQL to do that. select * from employee where CAST(hire_date AS Date) = '2005-02-22' And that's it. If you enjoy the video, please give it a like, comment, or subscribe to my channel. You can visit me at any of the following: SQL Training Online: http://www.sqltrainingonline.com Twitter: http://www.twitter.com/sql_by_joey Google+: https://plus.google.com/#100925239624117719658/posts LinkedIn: http://www.linkedin.com/in/joeyblue Facebook: http://www.facebook.com/sqltrainingonline
Views: 29337 Joey Blue
Views: 323878 Academind
This tutorial is about creating database linked server in Microsoft SQL Server 2014 to connect to Oracle Database XE. You require to install Oracle instant client and configure net service name to use as data source. Example of executing dml script is mentioned in this video.
Views: 15941 Subhroneel Ganguly
Group Project for Database Administrator
Views: 89 Azmi Ahamad
Hi friends, in this session I am gonna discuss the differences between ISNULL and NULLIF. Both ISNULL and NULLIF are built in system functions in sql server. Lot of people get confused between these 2 system functions. Lets discuss about each of these system functions separately so that you will get better idea. 1st lets discuss about ISNULL. ISNULL: ISNUL is a system function which replaces NULL with the specified replacement value. The functionalityof ISNULL is : 1. 1st it will Evaluate the expression which is in parameter 1. 2. it will compare the evaluated expression with null. if the paramter 1 = NULL ? 3. If parameter1 is equal to null i.e., if parameter 1 is null, then isnull function returns replacement value. if parameter1is not NULL, then ISNULL function returns parameter1 I hope we are clear on ISNULL. Lets move on to the next system function, that is NULLIF. NULLIF: NULLIF is a system function which returns a null value if the two specified expressions are equal. The functionalityof NULLIF is : 1. 1st it will Evaluate both the expression which are in parameter 1 and parameter 2. 2. next it will compare both the evaluated expressions with null. 3. If both the expressions are equal, the nullif functions returns NULL. 4. If both the expressions are not equal, the nullif functions returns 1st expression. Lets conclude the discussion with the similarities and differences between ISNULL and NULLIF Similarities: Both ISNULL and NULLIF are system functions. Syntax for Both the functions are similar Both ISNULL and NULLIF functions accepts 2 input parameters. Differences: isnull function compares 1st parameter with null.where as nullif function compares 1st parameter with 2nd parameter ISNULL function returns 2nd paramter if the 1st parameter isnull. nullif function returns null is 1st parameter = 2nd paramter. ISNULL function returns 1st paramter if the 1st parameter is not null. nullif function returns 1st paramter if 1st parameter is not equal to 2nd paramter. Thanks for watching this video. Bye , Have a good Day
Views: 7578 TheSSScreations
This video has examples of logical operators. These are used in the WHERE clause of an SQL command to filter data based on multiple criteria, i.e. to only show data that meets certain criteria. (7 of 15) There is also an "Advanced SQL" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 2881 Jennifer Kreie
Do you use EXPLAIN PLAN to tune Oracle SQL? Does it always "tell the truth", or does it "lie". (Maybe it's not the whole truth!) In this free tutorial from SkillBuilders' Oracle Certified Master John Watson, you will learn why the execution plan generated by EXPLAIN PLAN can be misleading and what to do about it. After a brief lecture, John demonstrates exactly why. You'll hear about dynamic sampling, adaptive cursor sharing (11g), adaptive execution plans (12c) and of course, bind variables. John demonstrates how bind variables cause misleading execution plans using dbms_xplan.display and dbms_xplan.display_cursor. To get the most from this tutorial, you should have some understanding of hard parse, soft parse, cardinality, histograms. See all SkillBuilders FREE Oracle Database tutorials at http://www.skillbuilders.com/free-oracle-tutorials.
Views: 3417 SkillBuilders
Explore SQL with Tom Coffing of Coffing Data Warehousing! In this lesson, learn about EXIST and NOT EXIST Subqueries!
Views: 5723 Coffing Data Warehousing
I very obviously misspoke when I said that SQL Server DBAs earn more than Oracle DBAs! I hope I didn't make other obviously incorrect statements, but some statements may only be wrong because my opinion is different than yours. I'll listen to this again tomorrow with fresh ears to hear others things I didn't intend to say, and as I indicate elsewhere, I hope to be revising and republishing videos with the iterations improving their quality, accuracy and usefulness. This is not the feature/performance-based comparison you might expect, but I hope it provides some insight or assists in thinking about comparison of the environments where these products are used. I acknowledge this this is primarily an "opinion" video. (As though other videos of mine aren't!) Please like, comment, share and subscribe. These will help the channel appear more often in search requests and suggested videos.
Views: 6473 SQL Server BOSS
For More Tutorials Related To Cisco,CCNA,Microsoft,Oracle,HP,Adobe,IBM,Java And Much More Please Visit This Site http://www.geteveryvideos.com/category/certification-tutorials/
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sql operators on oracle database 11g version 2
Views: 145 Education 4u
There are many different relational database management systems (RDBMS) out there. You have probably heard about Microsoft Access, Sybase, and MySQL, but the two most popular and widely used are Oracle and MS SQL Server. Although there are many similarities between the two platforms, there are also a number of key differences. In this blog, I will be taking a look at several in particular, in the areas of their command language, how they handle transaction control and their organization of database objects.
Views: 2130 NOWDEMY OFFICIAL
Take the Complete Course at: www.jobreadyprogrammer.com Achieve the Master Programmer Certification! In this lesson we cover query filtering conditions & operator precedence
Views: 3455 Imtiaz Ahmad