HINT: CTRL Enter will execute the single statement your cursor is on.column definitions can specify the current timestamp for both the default and auto-update values, for one but not the other, or for neither.For temporal type storage requirements, see Section 11.8, “Data Type Storage Requirements”.Note that the select statement must have a from clause. It is a special table with a column called DUMMY that has a value of ‘X’ used in selecting a pseudo column such as SYSDATE.I also think that there is no special reason why you take a string constant instead of a number constant. Use a number literal and write Because you started with string processing by inserting rows with the date represented as strings you can also make your correction using string processing.You can also insert data using the 'traditional' method you'd use when using a command line or SQL Plus.
I would recommand always to use the appropriate datatypes, operators and functions and explicit conversion and not to use string literals and string processing and implicit conversion. The number result of the length function to a string or the string literal to a number. Do you know if there can any problems arise from this conversion?As before, click the Commit Changes to update the record in the database.You can use this method to update multiple records, but you still need to step through each record and click on the field to update the record.Return to the SQL Worksheet and enter the command: Insert into departments (DEPARTMENT_ID, DEPARTMENT_NAME) Values (300, 'Research'); Click F9.NOTE: If you click F5, the detail is shown to the Script Output tab. As before you'll need to commit the changes to save them to the database. As in the above example, you can update data using the SQL Worksheet, using SQL commands, or you can use the data tab in the table definition and update individual rows. Once again you can update rows easily by using the Data tab interface.