Oracle PL/SQL/Select Query/Quote

Alternative Quoting Mechanism in Oracle 10g: two quotes really means one quote

 

SQL> create table TestTable(
  2    ID                    VARCHAR2(4 BYTE)         NOT NULL,
  3    Description           VARCHAR2(30 BYTE)
  4  )
  5  /
Table created.
SQL>
SQL>
SQL> insert into TestTable (ID, Description) values("1","1234 5th Street");
1 row created.
SQL> insert into TestTable (ID, Description) values("2","1 Culloden Street");
1 row created.
SQL> insert into TestTable (ID, Description) values("3","1234 Road");
1 row created.
SQL> insert into TestTable (ID, Description) values("4","33 Thrid Road");
1 row created.
SQL> insert into TestTable (ID, Description) values("5","One than another");
1 row created.
SQL> insert into TestTable (ID, Description) values("6","2003 Movie");
1 row created.
SQL> insert into TestTable (ID, Description) values("7","Start With Letters");
1 row created.
SQL>
SQL> select * from TestTable;
ID   DESCRIPTION
---- ------------------------------
1    1234 5th Street
2    1 Culloden Street
3    1234 Road
4    33 Thrid Road
5    One than another
6    2003 Movie
7    Start With Letters
7 rows selected.
SQL>
SQL> -- Alternative Quoting Mechanism in Oracle 10g
SQL>
SQL> -- two quotes really means one quote
SQL>
SQL> INSERT INTO testTable VALUES (99,"32 O""Neal Drive");
1 row created.
SQL>
SQL> select * from testTable;
ID   DESCRIPTION
---- ------------------------------
1    1234 5th Street
2    1 Culloden Street
3    1234 Road
4    33 Thrid Road
5    One than another
6    2003 Movie
7    Start With Letters
99   32 O"Neal Drive
8 rows selected.
SQL>
SQL>
SQL>
SQL> drop table TestTable;
Table dropped.
SQL>
SQL>
SQL>

q"{32 O"Hara Avenue}"): Use a "q" as the leading character after the parentheses

 

SQL> create table TestTable(
  2    ID                    VARCHAR2(4 BYTE)         NOT NULL,
  3    Description           VARCHAR2(30 BYTE)
  4  )
  5  /
Table created.
SQL>
SQL>
SQL> insert into TestTable (ID, Description) values("1","1234 5th Street");
1 row created.
SQL> insert into TestTable (ID, Description) values("2","1 Culloden Street");
1 row created.
SQL> insert into TestTable (ID, Description) values("3","1234 Road");
1 row created.
SQL> insert into TestTable (ID, Description) values("4","33 Thrid Road");
1 row created.
SQL> insert into TestTable (ID, Description) values("5","One than another");
1 row created.
SQL> insert into TestTable (ID, Description) values("6","2003 Movie");
1 row created.
SQL> insert into TestTable (ID, Description) values("7","Start With Letters");
1 row created.
SQL>
SQL> select * from TestTable;
ID   DESCRIPTION
---- ------------------------------
1    1234 5th Street
2    1 Culloden Street
3    1234 Road
4    33 Thrid Road
5    One than another
6    2003 Movie
7    Start With Letters
7 rows selected.
SQL>
SQL>
SQL> --Uses a "q" as the leading character after the parentheses and allows specification 
of a "different" sequence to define quotes
SQL>
SQL> INSERT INTO testTable VALUES (99, q"{32 O"Hara Avenue}");
1 row created.
SQL>
SQL> select * from testTable;
ID   DESCRIPTION
---- ------------------------------
1    1234 5th Street
2    1 Culloden Street
3    1234 Road
4    33 Thrid Road
5    One than another
6    2003 Movie
7    Start With Letters
99   32 O"Hara Avenue
8 rows selected.
SQL>
SQL> drop table TestTable;
Table dropped.
SQL>
SQL>

Quoted Identifiers

    
SQL> DECLARE
  2    "End" NUMBER := 1;
  3  BEGIN
  4    dbms_output.put_line("A quoted identifier End ["||"End"||"]");
  5  END;
  6  /
A quoted identifier End [1]
PL/SQL procedure successfully completed.
SQL>

Quoting syntax is q"[ ... ]" where the [] is the user-defined

    
SQL>
SQL>
SQL> BEGIN
  2     DBMS_OUTPUT.PUT_LINE("Colorado""s National Parks are BEAUTIFUL");
  3  END;
  4  /
Colorado"s National Parks are BEAUTIFUL
PL/SQL procedure successfully completed.
SQL> BEGIN
  2     DBMS_OUTPUT.PUT_LINE(q"!Colorado"s National Parks are BEAUTIFUL!");
  3  END;
  4  /
Colorado"s National Parks are BEAUTIFUL
PL/SQL procedure successfully completed.
SQL> BEGIN
  2     DBMS_OUTPUT.PUT_LINE(q"[Colorado"s National Parks are BEAUTIFUL]");
  3  END;
  4  /
Colorado"s National Parks are BEAUTIFUL
PL/SQL procedure successfully completed.
SQL> BEGIN
  2     DBMS_OUTPUT.PUT_LINE(q"<Colorado"s National Parks are BEAUTIFUL>");
  3  END;
  4  /
Colorado"s National Parks are BEAUTIFUL
PL/SQL procedure successfully completed.
SQL> BEGIN
  2     DBMS_OUTPUT.PUT_LINE(q"%Colorado"s National Parks are BEAUTIFUL%");
  3  END;
  4  /
Colorado"s National Parks are BEAUTIFUL
PL/SQL procedure successfully completed.

Using two single-quotes print the string correctly

    
SQL>
SQL> BEGIN
  2     DBMS_OUTPUT.PUT_LINE("C""s");
  3  END;
  4  /
C"s
PL/SQL procedure successfully completed.