Netezza

Netezza LIKE Statement and Pattern matching Examples

Unlike any other database, Netezza nzsql supports the pattern matching. You can search for the string by matching particular patterns. The Netezza LIKE statement expression is most commonly used in pattern matching. The Netezza LIKE statement returns true if the string contained in the set if strings or table columns that are represented by the pattern. The Netezza NOT LIKE statement returns false if LIKE returns true and vise-versa. Read: Netezza Phonetic Matching Functions and Examples Netezza Fuzzy String search Functions and Examples Search for String Pattern in Netezza Database:…

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November 29, 2016
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Netezza Array Functions and Examples

Netezza Appliance does not support the Netezza array functions without Netezza SQL Extension tool kit. You have to install the tool kit explicitly on the required data type. Read: Guide to Download and install Netezza SQL Extension Tool kit Netezza Data Types and Restrictions Netezza String Functions and Examples IBM Netezza Extract Function and its Usage Different types of Netezza Trim Functions and Examples These Netezza Array functions available in the toolkit rely on the Netezza array data type. IBM Netezza does not support the user defined data types, array…

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November 27, 2016
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Netezza Split Delimited Fields into Table Records and Examples

If you are working on the large volume of different source system then you may come across the requirement of Netezza split delimited fields into table records. There are some methods those you can use as per your requirements: Netezza Split Delimited Fields using ARRAY_SPLIT function You can use the ARRAY_SPLIT function that strips off record delimiter. The Netezza array functions are available in Netezza SQL extension tool kit that you have to install explicitly on required database. Read: Netezza String Function and its Usage with Examples Netezza Array Functions…

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November 26, 2016
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Netezza Fuzzy String search Functions and Examples

If you ever wondered how to verify how similar or different strings are. The Netezza SQL language supports two Netezza fuzzy string search functions:  Levenshtein Edit Distance and Damerau-Levenshtein Edit Distance. You can perform the fuzzy search with help of these functions. Basically, Netezza fuzzy string search function supports a search in a form of approximate string matching that is based on the defined technique or algorithms. These functions compare two strings to show how similar or different they are. These two fuzzy functions support only VARCHAR or CHAR data…

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November 25, 2016
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Netezza User Defined Functions and Sample Examples

The Netezza user defined functions feature allows you to create custom functions, aggregates, and shared libraries that run on Netezza systems and perform specific types of analysis for your business reporting and data query using those UDFs. The Netezza user defined functions allows you to make use of the Netezza massively parallel processing (MPP) environment to accelerate or speed up your data analysis, as well as to offer new and unique types of analysis on you tera byte of data. Read: Netezza Advance Analytics Functions Netezza String Functions and Examples…

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November 25, 2016
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Netezza Unique Key Constraint and Syntax

Netezza nzsql supports SQL-92 standard. Netezza data warehouse appliance supports referential integrity such as Netezza unique key, primary key, and foreign keys as part of SQL-92 standard requirement. You can create Netezza unique key constraint while creating tables in Netezza database but it will not be enforced while loading Netezza tables. Read: Netezza nzsql command and its Usage Netezza Primary Key Constraint and Syntax Netezza Foreign Key Constraint and Syntax In this post we will learn about the Netezza unique key constraints and its syntax. Netezza Unique Key Constraint Syntax and Example…

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November 19, 2016
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Netezza Foreign Key Constraint and Syntax

Netezza nzsql supports SQL-92 standard. Netezza data warehouse appliance supports referential integrity such as Netezza foreign key, primary key, and unique keys as part of SQL-92 standard requirement. You can create Netezza foreign key constraint while creating tables in Netezza database but it will not be enforced while loading Netezza tables. Read: Netezza nzsql command and its Usage Netezza Unique Key Constraint and Syntax Netezza Primary Key Constraint and Syntax In this post we will learn about the Netezza foreign key constraints and its syntax. Netezza Foreign Key Constraint Syntax and…

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November 19, 2016
Netezza

Netezza Primary Key Constraint and Syntax

Netezza nzsql supports SQL-92 standard. Netezza data warehouse appliance supports referential integrity such as Netezza primary key, foreign key, and unique keys as part of SQL-92 standard requirement. You can create Netezza primary key constraint while creating tables in Netezza database but it will not be enforced while loading Netezza tables. Read: Netezza Create Table Command and Examples Netezza Unique Key Constraint and Syntax Netezza Foreign Key Constraint and Syntax In this post we will learn about the Netezza primary key constraints and its syntax. Netezza Primary Key Constraint Syntax…

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November 19, 2016
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Netezza LEFT and RIGHT Functions

If you are migrating to Netezza from other relational databases such as Oracle, SQL Server etc, then you might have noticed Netezza left and right functions are not available. There are other alternatives string functions to Netezza left and right functions, such as you can use the built in SUBSTR function or STRLEFT and STRRIGHT functions that are provided in Netezza SQL Extension tool kit. You have to download and install this SQL extension toolkit explicitly on required database. Netezza strleft Function The strleft() function returns the leftmost n characters…

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November 19, 2016
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Netezza Case Statement and its Usage with Examples

The Netezza CASE statement chooses value from a sequence of conditions, and executes a corresponding statement. The CASE statement evaluates a single expression and compares it against several potential available values, or evaluates multiple Boolean expressions and chooses the first one that is TRUE. Netezza Case Statement Syntax Searched form: CASE WHEN <search-condition-1> THEN <result-1> WHEN <search-condition-2> THEN <result-2> ... WHEN <search-condition-n> THEN <result-n> ELSE <default-result> END Search conditions can be arbitrarily complex and results can be expressions. Value form: CASE <test-value> WHEN <comparand-value-1> THEN <result-1> WHEN <comparand-value-2> THEN <result-2>…

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November 17, 2016