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sql Archives - Petaa Bytes https://www.petaa-bytes.com/category/sql/ Fri, 17 Mar 2017 11:03:21 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://www.petaa-bytes.com/wp-content/uploads/2018/09/cropped-favicon-32x32.png sql Archives - Petaa Bytes https://www.petaa-bytes.com/category/sql/ 32 32 Retrieving Data Using the SQL Select Statement https://www.petaa-bytes.com/retrieving-data-using-sql-select-statement/?utm_source=rss&utm_medium=rss&utm_campaign=retrieving-data-using-sql-select-statement&utm_source=rss&utm_medium=rss&utm_campaign=retrieving-data-using-sql-select-statement https://www.petaa-bytes.com/retrieving-data-using-sql-select-statement/#respond Fri, 17 Mar 2017 11:03:18 +0000 http://www.petaa-bytes.com/?p=376 Basic SELECT statement Arithmetic expressions and NULL values Column alias Concatenation operator Literal character string Alternative quote operator DISTINCT keyword DESCRIBE command

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  • Basic SELECT statement
  • Arithmetic expressions and NULL values
  • Column alias
  • Concatenation operator
  • Literal character string
  • Alternative quote operator
  • DISTINCT keyword
  • DESCRIBE command

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    ]]>     https://www.petaa-bytes.com/retrieving-data-using-sql-select-statement/feed/ 0     Retrieving and Sorting Data https://www.petaa-bytes.com/retrieving-sorting-data/?utm_source=rss&utm_medium=rss&utm_campaign=retrieving-sorting-data&utm_source=rss&utm_medium=rss&utm_campaign=retrieving-sorting-data https://www.petaa-bytes.com/retrieving-sorting-data/#respond Fri, 17 Mar 2017 11:02:33 +0000 http://www.petaa-bytes.com/?p=381 Limit the retrieve rows Sort the rows Substitution variables

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  • Limit the retrieve rows
  • Sort the rows
  • Substitution variables

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    ]]>     https://www.petaa-bytes.com/retrieving-sorting-data/feed/ 0     Using Single – Row Function https://www.petaa-bytes.com/using-single-row-function/?utm_source=rss&utm_medium=rss&utm_campaign=using-single-row-function&utm_source=rss&utm_medium=rss&utm_campaign=using-single-row-function https://www.petaa-bytes.com/using-single-row-function/#respond Fri, 17 Mar 2017 11:01:50 +0000 http://www.petaa-bytes.com/?p=413 Single-row SQL Functions Character Functions Number Functions Working with dates Date Functions

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  • Single-row SQL Functions
  • Character Functions
  • Number Functions
  • Working with dates
  • Date Functions

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    ]]>     https://www.petaa-bytes.com/using-single-row-function/feed/ 0     Using Conversion Functions and Conditional Expression https://www.petaa-bytes.com/using-conversion-functions-conditional-expression/?utm_source=rss&utm_medium=rss&utm_campaign=using-conversion-functions-conditional-expression&utm_source=rss&utm_medium=rss&utm_campaign=using-conversion-functions-conditional-expression https://www.petaa-bytes.com/using-conversion-functions-conditional-expression/#respond Fri, 17 Mar 2017 11:00:30 +0000 http://www.petaa-bytes.com/?p=411 Implicit and explicit data type conversion TO_CHAR, TO_DATE, TO_NUMBER functions Nested Functions General Functions CASE and DECODE Conditional expressions

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  • Implicit and explicit data type conversion
  • TO_CHAR, TO_DATE, TO_NUMBER functions
  • Nested Functions
  • General Functions
  • CASE and DECODE Conditional expressions

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    ]]>     https://www.petaa-bytes.com/using-conversion-functions-conditional-expression/feed/ 0     Reporting Aggregate Data Using the Group Function https://www.petaa-bytes.com/reporting-aggregate-data-using-group-function/?utm_source=rss&utm_medium=rss&utm_campaign=reporting-aggregate-data-using-group-function&utm_source=rss&utm_medium=rss&utm_campaign=reporting-aggregate-data-using-group-function https://www.petaa-bytes.com/reporting-aggregate-data-using-group-function/#respond Fri, 17 Mar 2017 10:58:59 +0000 http://www.petaa-bytes.com/?p=409 Group Functions MIN MAX, COUNT, AVG,DISTINCT within group functions NULL values in a group functions

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  • Group Functions MIN
  • MAX, COUNT, AVG,DISTINCT within group functions
  • NULL values in a group functions

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    ]]>     https://www.petaa-bytes.com/reporting-aggregate-data-using-group-function/feed/ 0     Displaying Data from Multiple Tables https://www.petaa-bytes.com/displaying-data-multiple-tables/?utm_source=rss&utm_medium=rss&utm_campaign=displaying-data-multiple-tables&utm_source=rss&utm_medium=rss&utm_campaign=displaying-data-multiple-tables https://www.petaa-bytes.com/displaying-data-multiple-tables/#respond Fri, 17 Mar 2017 10:57:38 +0000 http://www.petaa-bytes.com/?p=407 Types of JOINS Natural join Self-Join Non-equijoin Outer join Cartesian Products

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  • Types of JOINS
  • Natural join
  • Self-Join
  • Non-equijoin
  • Outer join
  • Cartesian Products

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    ]]>     https://www.petaa-bytes.com/displaying-data-multiple-tables/feed/ 0     Using Subquery https://www.petaa-bytes.com/using-subquery/?utm_source=rss&utm_medium=rss&utm_campaign=using-subquery&utm_source=rss&utm_medium=rss&utm_campaign=using-subquery https://www.petaa-bytes.com/using-subquery/#respond Fri, 17 Mar 2017 10:55:34 +0000 http://www.petaa-bytes.com/?p=405 Single row subquery Group Function in subquery HAVING clause with subquery Multiple-row subquery NULL values in Subquery

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  • Single row subquery
  • Group Function in subquery
  • HAVING clause with subquery
  • Multiple-row subquery
  • NULL values in Subquery

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    ]]>     https://www.petaa-bytes.com/using-subquery/feed/ 0     Using Set Operator https://www.petaa-bytes.com/using-set-operator/?utm_source=rss&utm_medium=rss&utm_campaign=using-set-operator&utm_source=rss&utm_medium=rss&utm_campaign=using-set-operator https://www.petaa-bytes.com/using-set-operator/#respond Fri, 17 Mar 2017 10:54:08 +0000 http://www.petaa-bytes.com/?p=403 UNION and UNION ALL INTERSECT MINUS ORDER BY clause

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  • UNION and UNION ALL
  • INTERSECT
  • MINUS
  • ORDER BY clause

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    ]]>     https://www.petaa-bytes.com/using-set-operator/feed/ 0     Manipulating Data https://www.petaa-bytes.com/manipulating-data/?utm_source=rss&utm_medium=rss&utm_campaign=manipulating-data&utm_source=rss&utm_medium=rss&utm_campaign=manipulating-data https://www.petaa-bytes.com/manipulating-data/#respond Fri, 17 Mar 2017 10:52:40 +0000 http://www.petaa-bytes.com/?p=401 INSERT, UPDATE, DELETE TRUNCATE and COMMIT ROLLBACK and SAVEPOINT Read consistency FOR UPDATE clause

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  • INSERT, UPDATE, DELETE
  • TRUNCATE and COMMIT
  • ROLLBACK and SAVEPOINT
  • Read consistency
  • FOR UPDATE clause

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    ]]>     https://www.petaa-bytes.com/manipulating-data/feed/ 0     DDL Statement to Create and Manage Tables https://www.petaa-bytes.com/ddl-statement-create-manage-tables/?utm_source=rss&utm_medium=rss&utm_campaign=ddl-statement-create-manage-tables&utm_source=rss&utm_medium=rss&utm_campaign=ddl-statement-create-manage-tables https://www.petaa-bytes.com/ddl-statement-create-manage-tables/#respond Fri, 17 Mar 2017 10:50:36 +0000 http://www.petaa-bytes.com/?p=399 Naming rules CREATE Table Data Types Constraint NOT NULL PRIMARY KEY FOREIGN KEY UNIQUE,ALTER Table Create table using a subquery

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  • Naming rules
  • CREATE Table
  • Data Types
  • Constraint NOT NULL
  • PRIMARY KEY
  • FOREIGN KEY
  • UNIQUE,ALTER Table
  • Create table using a subquery

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    ]]>     https://www.petaa-bytes.com/ddl-statement-create-manage-tables/feed/ 0     Creating other Schema Objects https://www.petaa-bytes.com/creating-schema-objects/?utm_source=rss&utm_medium=rss&utm_campaign=creating-schema-objects&utm_source=rss&utm_medium=rss&utm_campaign=creating-schema-objects https://www.petaa-bytes.com/creating-schema-objects/#respond Fri, 17 Mar 2017 10:47:27 +0000 http://www.petaa-bytes.com/?p=397 Views Sequence Index Synonyms

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  • Views
  • Sequence
  • Index
  • Synonyms

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    ]]>     https://www.petaa-bytes.com/creating-schema-objects/feed/ 0     Controlling User Access https://www.petaa-bytes.com/controlling-user-access/?utm_source=rss&utm_medium=rss&utm_campaign=controlling-user-access&utm_source=rss&utm_medium=rss&utm_campaign=controlling-user-access https://www.petaa-bytes.com/controlling-user-access/#respond Fri, 17 Mar 2017 10:46:15 +0000 http://www.petaa-bytes.com/?p=395 Creating a role Object Privileges Revoking object privileges

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  • Creating a role
  • Object Privileges
  • Revoking object privileges

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    ]]>     https://www.petaa-bytes.com/controlling-user-access/feed/ 0     Managing Schema Objects https://www.petaa-bytes.com/managing-schema-objects/?utm_source=rss&utm_medium=rss&utm_campaign=managing-schema-objects&utm_source=rss&utm_medium=rss&utm_campaign=managing-schema-objects https://www.petaa-bytes.com/managing-schema-objects/#respond Fri, 17 Mar 2017 10:41:37 +0000 http://www.petaa-bytes.com/?p=393 Managing constraints Creating Index Performing flashback operations Creating and using external tables

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  • Managing constraints
  • Creating Index
  • Performing flashback operations
  • Creating and using external tables

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    ]]>     https://www.petaa-bytes.com/managing-schema-objects/feed/ 0     Managing Objects with Data Dictionary Views https://www.petaa-bytes.com/managing-objects-data-dictionary-views/?utm_source=rss&utm_medium=rss&utm_campaign=managing-objects-data-dictionary-views&utm_source=rss&utm_medium=rss&utm_campaign=managing-objects-data-dictionary-views https://www.petaa-bytes.com/managing-objects-data-dictionary-views/#respond Fri, 17 Mar 2017 10:40:27 +0000 http://www.petaa-bytes.com/?p=391 Table information Column information Constraint information View information Sequence Information Synonym information Comment to a table

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  • Table information
  • Column information
  • Constraint information
  • View information
  • Sequence Information
  • Synonym information
  • Comment to a table

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    ]]>     https://www.petaa-bytes.com/managing-objects-data-dictionary-views/feed/ 0     Manipulating Large Data Sets https://www.petaa-bytes.com/manipulating-large-data-sets/?utm_source=rss&utm_medium=rss&utm_campaign=manipulating-large-data-sets&utm_source=rss&utm_medium=rss&utm_campaign=manipulating-large-data-sets https://www.petaa-bytes.com/manipulating-large-data-sets/#respond Fri, 17 Mar 2017 10:38:27 +0000 http://www.petaa-bytes.com/?p=389 Unconditional INSERT Pivoting INSERT INSERT ALL Merging rows Tracking the chnages

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  • Unconditional INSERT
  • Pivoting INSERT
  • INSERT ALL
  • Merging rows
  • Tracking the chnages

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    ]]>     https://www.petaa-bytes.com/manipulating-large-data-sets/feed/ 0     Managing Data in Different Time Zones https://www.petaa-bytes.com/managing-data-different-time-zones/?utm_source=rss&utm_medium=rss&utm_campaign=managing-data-different-time-zones&utm_source=rss&utm_medium=rss&utm_campaign=managing-data-different-time-zones https://www.petaa-bytes.com/managing-data-different-time-zones/#respond Fri, 17 Mar 2017 10:34:31 +0000 http://www.petaa-bytes.com/?p=387 INTERVAL data types EXTRACT TZ_OFFSET FROM_TZ TO_TIMESTAMP TO_YMINTERVAL TO_DSINTERVAL

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  • INTERVAL data types
  • EXTRACT
  • TZ_OFFSET
  • FROM_TZ
  • TO_TIMESTAMP
  • TO_YMINTERVAL
  • TO_DSINTERVAL

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    ]]>     https://www.petaa-bytes.com/managing-data-different-time-zones/feed/ 0     Retrieving Data Using Subqueries https://www.petaa-bytes.com/retrieving-data-using-subqueries/?utm_source=rss&utm_medium=rss&utm_campaign=retrieving-data-using-subqueries&utm_source=rss&utm_medium=rss&utm_campaign=retrieving-data-using-subqueries https://www.petaa-bytes.com/retrieving-data-using-subqueries/#respond Fri, 17 Mar 2017 10:31:50 +0000 http://www.petaa-bytes.com/?p=385 Using scalar subquery correlated subqueries EXISTS and NOT EXISTS WITH clause

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  • Using scalar subquery
  • correlated subqueries
  • EXISTS and NOT EXISTS
  • WITH clause

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    ]]>     https://www.petaa-bytes.com/retrieving-data-using-subqueries/feed/ 0     Regular Expression Support https://www.petaa-bytes.com/regular-expression-support/?utm_source=rss&utm_medium=rss&utm_campaign=regular-expression-support&utm_source=rss&utm_medium=rss&utm_campaign=regular-expression-support https://www.petaa-bytes.com/regular-expression-support/#respond Fri, 17 Mar 2017 10:30:42 +0000 http://www.petaa-bytes.com/?p=383 REGEXP_LIKE REGEXP_REPLACE REGEXP_INSTR REGEXP_SUBSTR Accessing subexpressions REGEXP_COUNT

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  • REGEXP_LIKE
  • REGEXP_REPLACE
  • REGEXP_INSTR
  • REGEXP_SUBSTR
  • Accessing subexpressions
  • REGEXP_COUNT

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    ]]>     https://www.petaa-bytes.com/regular-expression-support/feed/ 0