Netezza String Functions Archives

Different types of Netezza Trim Functions and Examples

The Netezza TRIM functions which are available in Netezza NZSQL are used to remove specified prefix or suffix from a string. The most common pattern being removed is white spaces. Netezza support different trim function that you can be used to trim or remove the particular character or white spaces. A Netezza trim functions includes TRIM, LTRIM, and RTRIM. Read: Netezza String Functions and Examples Netezza LEFT and RIGHT Functions and Examples IBM Netezza Analytical Functions How to use Netezza Replace Function and Examples Netezza Array Functions and Examples Netezza…

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December 2, 2016

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

Netezza

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

Netezza

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

Netezza

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

Netezza

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

Netezza

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

Netezza

Netezza Pad Zero with Working Example

Netezza pad zero functions are string functions used to remove or add the string to beginning or end of the expression. An expression could be column values. There are two pad functions available in Netezza; LPAD and RPAD string functions. You can use those function in Netezza pad zero or any other character provided in arguments: Read: Netezza String Functions and Usage Different types of Netezza Trim Functions and Examples Netezza Date Functions and Examples nzsql Command and its Usage Netezza LPAD function You can use this function to pad string…

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October 24, 2016

Netezza

Netezza Interval Data Types and Conversion Examples

Netezza interval data types are supported in different way. Netezza accepts the interval syntax, but ignores the unit specification. All intervals are the same, and can contain values of any combination of units. Netezza server internally normalizes all intervals to units of seconds. It considers a month to be 30 days for the purposes of interval comparisons and this approximation may lead to inaccuracy. Netezza Interval Data Types Implementation IBM Netezza implements the INTERVAL data type in a different way compared to other databases. Netezza allows you to specify interval…

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September 23, 2016

Netezza

Netezza String Functions and its Usage with Examples

Netezza String Functions are used primarily for string manipulation. An IBM Netezza also supports some of the standard string function along with the PostgreSQL specific functions. Netezza String Function Usage Below is the list of Netezza String functions supported: Function Name Description ascii(s) Returns the numeric ASCII value of the first character in the text string. btrim(s) Trims spaces from both ends of the string. btrim(s,t) Trims occurrences of the characters in string t from bothe ends of string s chr(n) Returns the character with the specified ASCII value. initcap(s) Capitalizes the…

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September 21, 2016