1. Which one of the following operators allow us to concatenate two strings?   +   &   ||   &&   Hint Half-n-half Clue   2. SQL is a record level language.   True   False   3. If we write a program in a programming language and switch to SQL when we require to use the database, then the SQL environment in use is know as _______ SQL.   Embedded   Real - time   PL   Dynamic   Half-n-half Clue   4. SQL stands for _______.   Structured Query Language   Structured Question Language   Structural Query Language   Systematic Query Language   Half-n-half Clue   5. SQL is a _______ language.   object-oriented   procedural   non-procedural   Half-n-half Clue   6. The data type used to store variable length bit strings is _______.   VARBIT2(length)   VARBIT(length)   BIT VARYING(length)   BIT(length)   Half-n-half Clue   7. SQL statements can be executed without a DBMS.   True   False