What does P stand for in SQL?

What does P in SQL mean?

This syntax FROM tablename p. or JOIN tablename p. create an alias for a table name. In most cases, it is simply a way to shorten your statement, because you can use a shorter name in place of a full table name.

What does this symbol mean in SQL?

<> this symbol means not equal in sql.

What does G mean in SQL?

The ubiquitous semicolon command terminator ; is actually shorthand for the \g command, which is in itself shorthand for the go command. The go command is used both historically and currently in other flavours of SQL to submit batches of commands to be compiled and / or interpretted by the server.

What is @@ in SQL?

In SQL Server, symbol @@ is prefixed to global variables. The server maintains all the global variables.