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SQL GLOBAL TIME TABLES (GTT)
SQL GLOBAL TABLES are tables that are created separately in SQL sessions.
Syntax for CREATE GLOBAL TEMPORARY TABLE in SQL
CREATE GLOBAL TEMPORARY TABLE tab_name
( col1 datatype_1 [ NULL | NOT NULL ],
col2 datatype_1 [ NULL | NOT NULL ],
…
);
where:
- tab_name – the name of the global time table you want to create
- col1, col2 – The columns you want to create in the global time table. Each column must have a data type. The column must be defined as NULL or NOT NULL, and if this value is left blank, the database takes NULL as its default value.
Example:
Let’s look at SQL CREATE GLOBAL TEMPORARY TABLE
CREATE GLOBAL TEMPORARY TABLE suppls_temp
( suppl_id numeric(10) NOT NULL,
suppl_name char(50) NOT NULL,
cont_name char(50)
);
This example will create a GLOBAL TIME TABLE suppl_temp.
GLOBAL TEMPORARY TABLE (GTT) IN ORACLE SQL WITH EXAMPLES
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