Tutorial by Topics: let

MSSQL Syntax: DROP DATABASE [ IF EXISTS ] { database_name | database_snapshot_name } [ ,...n ] [;] MySQL Syntax: DROP {DATABASE | SCHEMA} [IF EXISTS] db_name DROP DATABASE is used for dropping a database from SQL. Be sure to create a backup of your database before dropping it to prevent ...

singleton_class = class << object; self end Singleton classes only have one instance: their corresponding object. This can be verified by querying Ruby's ObjectSpace: instances = ObjectSpace.each_object object.singleton_class instances.count # => 1 instances.include...

CTFE is a mechanism which allows the compiler to execute functions at compile time. There is no special set of the D language necessary to use this feature - whenever a function just depends on compile time known values the D compiler might decide to interpret it during compilation. You can also ...

IBOutlet is neither a reserved word nor a variable or class, is syntactic sugar for Interface Builder. After the Objective-C source code is pre-processed it is resolved to nothing. In Swift it's resolved as nil. It's declared in <UIKit/UINibDeclarations.h> as #ifndef IBOutlet #define IB...

FTPClient connect(InetAddress host, int port) FTPClient login(String username, String password) FTPClient disconnect() FTPReply getReplyStrings() boolean storeFile(String remote, InputStream local) OutputStream storeFileStream(String remote) boolean setFileType(int fileType) boolean complet...

User defined table types (UDT for short) are data types that allows the user to define a table structure. User defined table types supports primary keys, unique constraints and default values. UDTs have following restrictions - can not be used as a column in a table or a field in a structure...

If you want to offer suggestions to the user when they type in an editable text field, you can use an AutoCompleteTextView. It provides suggestions automatically when the user is typing. The list of suggestions is displayed in a drop down menu from which the user can select one to replace the cont...

scp /some/local/directory/file_name user_name@host_name:destination_file_path scp user_name@host_name:origin_file_path /some/local/directory

Applets have been part of Java since its official release and have been used to teach Java and programming for a number of years. Recent years have seen an active push to move away from Applets and other browser plugins, with some browsers blocking them or actively not supporting them. In 2016, Or...

AnnotationPurpose@InheritanceSpecifies type of inheritance strategy used@DiscriminatorColumnSpecifies a column in database which will be used to identify different entities based on certain ID assigned to each entity@MappedSuperClassmapped super classes are not persistent and only used to hold stat...

The DELETE statement deletes records from mass storage. Some compilers allow the DELETE statement to be used with a FILE clause, to delete FD names (along with any associated indexing structures that may be required by the database management engine in use).