Cursor for updating a column plsql

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Dynamic SQL means that at the time you write (and then compile) your code, you do not have all the information you need for parsing a SQL statement.You will see one of the error messages shown in Table 1.Table 1: Possible error messages if INTO and SELECT lists do not match A SELECT-INTO is also referred to as an implicit query, because Oracle Database implicitly opens a cursor for the SELECT statement, fetches the row, and then closes the cursor when it finishes doing that (or when an exception is raised).You must, of course, use the SQL language to access tables, and each time you do so, you use a to get the job done.A cursor is a pointer to a private SQL area that stores information about the processing of a SELECT or data manipulation language (DML) statement (INSERT, UPDATE, DELETE, or MERGE).

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