How do I format a SQL query?

-- Format Selected Query: To format a selected query(s) in set of query(s), select the query(s) to be formatted. Select Edit -> SQL Formatter -> Format Selected Query (or press Ctrl+F12). -- Format All Queries: To format the whole batch of queries entered in the SQL window.

People also ask, how do I format a SQL query in SQL Developer?

I have used Ctrl + f7 to format or align my query in sqldeveloper 4.7 with reference to the above comment from leo. Just right click, select FORMAT option, or, use Ctrl + f7 shortcut to format. If you have not set your own formatting rules, then it would take the default formatting.

Similarly, how do I indent in SQL query? The Indent using spaces option indent operations inserting space characters. If the Indent using tabs option is chosen indent operation will insert for each tab character the number of spaces specified in Tabs equal box. The Smart indent option aligns identifiers in the data statements (Select, Update, Delete, Insert).

In this regard, what is SQL Server format?

Definition and Usage. The FORMAT() function formats a value with the specified format (and an optional culture in SQL Server 2017). Use the FORMAT() function to format date/time values and number values. For general data type conversions, use CAST() or CONVERT().

What is SQL date format?

SQL Server comes with the following data types for storing a date or a date/time value in the database: DATE - format YYYY-MM-DD. DATETIME - format: YYYY-MM-DD HH:MI:SS. SMALLDATETIME - format: YYYY-MM-DD HH:MI:SS. TIMESTAMP - format: a unique number.

17 Related Question Answers Found

What is the format of datetime in SQL Server?

SQL Server accepts datetime values in ISO 8601 and ANSI formats, which are: yyyy-mm-ddThh:mm:ss. nnnnnn and yyyy-mm-dd hh:mm:ss. nnnnnn, respectively.

What is cast in SQL?

In SQL Server (Transact-SQL), the CAST function converts an expression from one datatype to another datatype. If the conversion fails, the function will return an error. Otherwise, it will return the converted value. TIP: Use the TRY_CAST function to return a NULL (instead of an error) if the conversion fails.

How do I format SQL Server?

In SQL Server, you can use the T-SQL FORMAT() function to return values such as numbers and dates as formatted strings. You provide the value to be formatted, and you specify the format to use. The function accepts an optional argument that allows you to specify a culture to use when formatting the value.

How can I get date value in SQL?

A DATE data type contains both date and time elements. If you are not concerned about the time portion, then you could also use the ANSI Date literal which uses a fixed format 'YYYY-MM-DD' and is NLS independent. For example, SQL> INSERT INTO t(dob) VALUES(DATE '2015-12-17'); 1 row created.

What is SQL used for?

SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL statements are used to perform tasks such as update data on a database, or retrieve data from a database.

How can I compare two dates in SQL query?

The right way to compare date only values with a DateTime column is by using <= and > condition. This will ensure that you will get rows where date starts from midnight and ends before midnight e.g. dates starting with '00:00:00.000' and ends at "59:59:59.999".

How do I select year from date in SQL?

If you use SQL Server, you can use the YEAR() or DATEPART() function to extract the year from a date. SELECT YEAR(CURRENT_TIMESTAMP); SELECT DATEPART(year, CURRENT_TIMESTAMP); Similar to SQL Server, MySQL also supports the YEAR() function to return the year from a date.

Do tabs matter in SQL?

Be consistent with indenting – set up several spaces to use for a tab, or always use the same number of spaces. Using tabs instead of spaces is easier, as it requires less clicks, but when cutting and pasting of SQL code is started, spaces are easier to handle.

Do line breaks matter in SQL?

There is no need to use a line break before every SQL command, only where needed to fit on a line.

How do you optimize a query?

It's vital you optimize your queries for minimum impact on database performance.

Define business requirements first.
SELECT fields instead of using SELECT *
Avoid SELECT DISTINCT.
Create joins with INNER JOIN (not WHERE)
Use WHERE instead of HAVING to define filters.
Use wildcards at the end of a phrase only.

IS NOT NULL SQL?

The IS NOT NULL condition is used in SQL to test for a non-NULL value. It returns TRUE if a non-NULL value is found, otherwise it returns FALSE. It can be used in a SELECT, INSERT, UPDATE, or DELETE statement.

How do I wrap text in SQL?

To activate word wrap

Click Options on the Tools menu.
Click Text Editor.
Open the appropriate language folder (or All Languages to affect all languages).
Select Word wrap.

How do I make my SQL code readable?

So, of course here's some of my own recommendations on how to make SQL more readable.

One thing per line. Only put a single column/table/join per line.
Align your projections and conditions.
Use column names when grouping/ordering.
Comments.
Casing.
CTEs.
Conclusion.