#Razorsql cast function how to

VALUES ('Josh', 'Thompson', NULL, '80 Victoria Street', 1, '1') VALUES ('Adam', 'Cooper', 'USA', '14 Wellington Road', 55, NULL) INSERT INTO customers (first_name, last_name, country, full_address, employees, start_date) I find that examples are the best way for me to learn about code, even with the explanation above.įirst of all, let’s set up the CUSTOMERS table. Here are some examples of the SQL CAST function. Want to see articles like this on all of the other Oracle functions? Check out this page which lists all of the functions and guides for each of them. If the resulting value is larger than the target type, then you’ll get an error. If you try to CAST a CLOB into a character data type, for example, the LOB value is converted to a character value and then converted to the target data type. CAST does not support any of the LOB data types.You cannot cast a UROWID to a ROWID if the UROWID contains the value of a ROWID of an index-organized table.The Datetime/Interval column includes DATE, TIMESTAMP, TIMESTAMP WITH TIMEZONE, INTERVAL DAY TO SECOND and INTERVAL YEAR TO MONTH.This table from Oracle shows which types are compatible. The Oracle CAST function can only convert to and from certain data types. subquery (mandatory choice): This is the subquery that can be run to be converted into a collection data type.If this is omitted, and the subquery returns multiple rows, it will only return a single row. MULTISET (optional): This keyword indicates that the subquery results will return multiple rows, and are then CAST into a collection value.type_name (mandatory): This is the SQL data type that the expression will be converted to.expression (mandatory choice): This is the value or expression that is to be converted to another data type.We’ll see examples of each of these later in the article.

In Oracle, you can also use it with a subquery type: CAST( MULTISET (subquery) AS type_name ) The syntax for the SQL CAST function is: CAST( expression AS type_name )

#Razorsql cast function how to

Related: How to Convert Data Types in Oracle SQL. It allows for more functionality than the TO_NUMBER, TO_CHAR and TO_DATE functions in Oracle, and other specific data type functions, as it allows you to specify the actual data types you want to convert to, rather than just use the defaults of those functions. The purpose of the SQL CAST function is to convert one data type to another. This article applies to Oracle, SQL Server, MySQL, and Postgres. Learn how to use it and what it can do in this article. The SQL CAST function is quite powerful, but it can be hard to use.