Best SQL Query Format Tools Online

Who does not like formatted SQL codes? They are easy to read, understand and follow the complex logic. Sometimes, when you export SQL code from the database, the code will become messy and hard to understand. In this article, we will check Best SQL query format tools available for free on the internet. Some of them provide an API so that you can integrate in your application. Best SQL Query Format Tools Before jumping on the tools introduction. let us understand why the SQL code formatting is important? Why do…

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Export Netezza Data with Quoted Values into Flat File and Example

In general, quoted values are values which are enclosed in single or double quotes. Usually, quoted values files are system generated where each and every fields in flat files is either enclosed in SINGLE or DOUBLE quotation mark. In this article, we will check how to export Netezza data with quoted values into flat file such as CSV format. Quoted Value File Overview As mentioned in the previous section, quoted values files contains the values that are enclosed either in SINGLE or DOUBLE quotation mark. Generally, values are enclosed in…

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Run Netezza SQL Script File using nzsql Variable Substitution

Netezza allows the variable substitution using -v option in Netezza nzsql queries. The variable substitution is very important when you are calling the Netezza nzsql scripts from shell or any other scripting language. You can pass the values to query that you are calling using -v option. In this article, we will see how to run Netezza nzsql script file using nzsql variable substitution. We also see some of the working examples that uses the Netezza variable substitution method. Run Netezza SQL Script File using nzsql Variable Substitution You can set…

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Netezza DECODE Function Syntax and Examples

Netezza supports the DECODE function and it is similar to DECODE function in other relational databases such as Oracle, SQL Server, MySQL, Redshift etc. You can use the Netezza DECODE function to implement if-then-else statement in Netezza nzsql. This command is a short-hand form of Netezza CASE function. Netezza DECODE Function Syntax DECODE (expr, expr_val1, ’expr_rep1’, expr_val2, ’expr_rep2’, expr_val3, ’expr_rep3’, ’else-expr’) ; Execution Flow: If 'expr' is equal to expr_val1 then ’expr_rep1’ is returned, if 'expr' is equal to 'expr_val2' then ’expr_rep2’ is return, if 'expr' is equal to 'expr_val3'…

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Netezza NVL and NVL2 Functions with Examples

Netezza supports NVL and NVL2 functions. Netezza NVL Function The NVL function replaces a NULL value with a replacement string that you provide in the function. Returns the first argument if it is not null, otherwise it returns the second argument The Netezza NVL function is equivalent to the Netezza SQL coalesce function. The Function will return the non-NULL value. Note that, You cannot replace the blank value using NVL function. Some databases supports this nut Netezza does not. Syntax: NVL (exp,replacement-exp); Returns 'exp' if not null otherwise 'replacement-exp' is…

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Netezza Organize On Syntax and Examples

The Netezza Organize on is one of important feature introduced in the Netezza data warehouse appliance. With the help of Organize on keys, you can create the clustered base tables (CBT). You can specify up to four columns in organize on key. Read: Cluster Based Tables - CBT Netezza TwinFin Architecture IBM Netezza nzsql Command and its Usage Netezza ALTER TABLE Command Netezza Organize On Keys IBM Netezza Organizing keys are useful for the more frequently used columns that you specify as keys are used in query predicates, alone or in…

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Netezza nzsql Windows System Exit Codes

In this article, Netezza nzsql Windows system exit codes are discussed. These exit codes are very much important when you are building ETL/ELT operation or executing nzsql commands on windows systems. From a Windows system command prompt, the exit codes from the nzsql command provide information about the execution status of the SQL commands. Read: Netezza nzsql exit codes for Unix/Linux Systems Netezza nzsql commands and is Usage Netezza SET ON_ERROR_STOP and Examples Netezza nzsql Windows System Exit Codes When you are running queries interactively at the nzsql prompt or…

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Netezza nzsql Exit Codes for UNIX/Linux Systems

In this article, Netezza nzsql exit codes are discussed. These exit codes are very much important when you are building ETL/ELT operation using shell scripts. On UNIX/Linux systems such as the NPS, the Netezza nzsql exit codes provide information about the execution status of the SQL commands. Read: Netezza nzsql Command and its Usage Netezza SET ON_ERROR_STOP and Examples Netezza nzsql Exit Codes When you are running queries interactively at the nzsql prompt or by using a script (nzsql -f), the command returns one of the following exit codes: 0:…

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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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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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