DML statements are insert, select, update and delete and it won’t implicitly commit the current transaction.ġ1) What is the difference between TRANSLATE and REPLACE?

/*- */ is used to represent it as comments for block of statementĭata Manipulation Language (DML) is used to access and manipulate data in the existing objects.

Two dashes(–) before beginning of the line – Single statement.

Oracle Interview Questionsĩ) How do we represent comments in Oracle?Ĭomments in Oracle can be represented in two ways – Length should be specified in Bytes for BLOB. Coalesce(value1, value2,value3,…)Ī BLOB data type is a varying length binary string which is used to store two gigabytes memory. If all values in the list are null, then the coalesce function will return NULL. It also hold entire sub table.ĬOALESCE function is used to return the value which is set to be not null in the list. Nested table is a data type in Oracle which is used to support columns containing multi valued attributes. In Oracle, months_between function is used to find number of months between the given dates. Example is –ĥ) Whether any commands are used for Months calculation? If so, What are they?

The NVL function is used to replace NULL values with another or given value. Manufacturing Production Interview Questions.

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