What is Oracle DEFAULT data?

Question

Oracle Default Value The DEFAULT keyword provides a default value to a column when the Oracle INSERT INTO statement does not provide a specific value. The default value can be literal value, an expression, or a SQL Function, such as SYSDATE.

What is default data type?

For numeric types, the default is 0 , with the exception that for integer or floating-point types declared with the AUTO_INCREMENT attribute, the default is the next value in the sequence. For date and time types other than TIMESTAMP , the default is the appropriate “zero” value for the type.

What are the default tables in Oracle?

NameDescriptionSYS.COLUMNSStores data about the columns in a tableSYS.INDEXESStores data about indexes on table columnsSYS.SEQUENCESStores data about sequencesSYS.TABLESStores data about tables

What is the default value of data?

Default values, in the context of databases, are preset values defined for a column type. Default values are used when many records hold similar data.

What is Oracle default order?

By default, the ORDER BY clause sorts rows in ascending order whether you specify ASC or not. If you want to sort rows in descending order, you use DESC explicitly. NULLS FIRST places NULL values before non-NULL values and NULLS LAST puts the NULL values after non-NULL values.

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