Teradata provides several functions to manipulate the strings. These functions are compatible with ANSI standard. Sr.NoString Function & Description1||Concatenates strings together2SUBSTRExtracts a portion of a string (Teradata extension)3SUBSTRINGExtracts a portion…
SET operators combine results from multiple SELECT statement. This may look similar to Joins, but joins combines columns from multiple tables whereas SET operators combines rows from multiple rows. Rules…
Teradata supports the following logical and conditional operators. These operators are used to perform comparison and combine multiple conditions. SyntaxMeaning>Greater than<Less than>=Greater than or equal to<=Less than or equal to=Equal…
SELECT statement is used to retrieve records from a table. Syntax Following is the basic syntax of SELECT statement. SELECT column 1, column 2, ..... FROM tablename; Example Consider the…
This chapter introduces the SQL commands used to manipulate the data stored in Teradata tables. Insert Records INSERT INTO statement is used to insert records into the table. Syntax Following…
Tables in Relational model are defined as collection of data. They are represented as rows and columns. Table Types Types Teradata supports different types of tables. Permanent Table − This is…
Each column in a table is associated with a data type. Data types specify what kind of values will be stored in the column. Teradata supports several data types. Following…
Relational Database Management System (RDBMS) is a DBMS software that helps to interact with databases. They use Structured Query Language (SQL) to interact with the data stored in tables. Database…
Teradata architecture is based on Massively Parallel Processing (MPP) architecture. The major components of Teradata are Parsing Engine, BYNET and Access Module Processors (AMPs). The following diagram shows the high…
Teradata provides Teradata express for VMWARE which is a fully operational Teradata virtual machine. It provides up to 1 terabyte of storage. Teradata provides both 40GB and 1TB version of…