PLSQL引用字符串未正确终止

我找不到带引号的字符串结尾不正确的错误。我到处都找过了，我的语法似乎是正确的。这个问题是在我介绍if声明时才出现的。任何想法都将不胜感激。谢谢如果你需要更多信息，请告诉我

declare

bk_id book.book_code%type;
bk_authorName author.author_first%type;
bk_authorLastName author.author_last%type;
bk_title book.title%type;
bk_pubcode book.publisher_code%type;
bk_category book.type%type;
bk_price book.price%type;
bk_paper book.paperback%type;
TempData := 10;

cursor book_cursor is select author.author_first, author.author_last,  book.title, book.type, book.price from book, author, wrote where book.book_code=wrote.book_code and author.author_num=wrote.author_num;

begin

open book_cursor;

dbms_output.put_line('First Name    Last Name       Title                        Type    Price');
dbms_output.put_line('________________________________________________________________________');
dbms_output.put_line('Date: '||Systimestamp);
loop

fetch book_cursor into  bk_authorName, bk_authorLastName, bk_title, bk_category, bk_price;

if(bk_price<TempData) then

dbms_output.put_line(bk_authorName || ' ' || bk_authorLastName || ' ' || bk_title || ' ' || bk_category || ' ' || bk_price || 'Special Deal');

else

dbms_output.put_line(bk_authorName || ' ' || bk_authorLastName || ' ' || bk_title || ' " || bk_category || ' ' || bk_price);

end if;

exit when book_cursor%notfound;

end loop;

close book_cursor;

end;

声明
bk_id book.book_代码%type；
bk_authorName author。author_第一个%type；
bk_authorLastName author.author_last%类型；
bk_标题簿。标题%类型；
bk_pubcode图书。出版商代码%type；
bk_分类簿。类型%type；
bk_价目表。价格%类型；
bk_纸质书。平装本%类型；
TempData:=10；
光标书\光标是选择author.author\u first，author.author\u last，book.title，book.type，book.price from book，author，writed where book.book\u code=writed.book\u code and author.author\u num=writed.author\u num；
开始
打开书本或光标；
dbms_output.put_行（'First Name Last Name Title Type Price'）；
dbms_输出.put_行（'uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu）；
dbms|u output.put|u行（'Date:'| | Systimestamp）；
环
将图书光标取到bk_authorName、bk_authorLastName、bk_title、bk_category、bk_price中；
如果（bk_price实际上，这种语法的问题是使用双引号而不是单引号。
这是正确的代码。试试这个，应该可以

    declare

    bk_id book.book_code%type;
    bk_authorName author.author_first%type;
    bk_authorLastName author.author_last%type;
    bk_title book.title%type;
    bk_pubcode book.publisher_code%type;
    bk_category book.type%type;
    bk_price book.price%type;
    bk_paper book.paperback%type;
    TempData := 10;

    cursor book_cursor is select author.author_first, author.author_last,  book.title, book.type, book.price from book, author, wrote where book.book_code=wrote.book_code and author.author_num=wrote.author_num;

    begin

    open book_cursor;

    dbms_output.put_line('First Name    Last Name       Title                        Type    Price');
    dbms_output.put_line('________________________________________________________________________');
    dbms_output.put_line('Date: '||Systimestamp);
    loop

    fetch book_cursor into  bk_authorName, bk_authorLastName, bk_title, bk_category, bk_price;

    if(bk_price<TempData) then

    dbms_output.put_line(bk_authorName || ' ' || bk_authorLastName || ' ' || bk_title || ' ' || bk_category || ' ' || bk_price || 'Special Deal');

    else

    dbms_output.put_line(bk_authorName || ' ' || bk_authorLastName || ' ' || bk_title || ' ' || bk_category || ' ' || bk_price);

    end if;

    exit when book_cursor%notfound;

    end loop;

    close book_cursor;

    end; 

声明
bk_id book.book_代码%type；
bk_authorName author。author_第一个%type；
bk_authorLastName author.author_last%类型；
bk_标题簿。标题%类型；
bk_pubcode图书。出版商代码%type；
bk_分类簿。类型%type；
bk_价目表。价格%类型；
bk_纸质书。平装本%类型；
TempData:=10；
光标书\光标是选择author.author\u first，author.author\u last，book.title，book.type，book.price from book，author，writed where book.book\u code=writed.book\u code and author.author\u num=writed.author\u num；
开始
打开书本或光标；
dbms_output.put_行（'First Name Last Name Title Type Price'）；
dbms_输出.put_行（'uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu）；
dbms|u output.put|u行（'Date:'| | Systimestamp）；
环
将图书光标取到bk_authorName、bk_authorLastName、bk_title、bk_category、bk_price中；
如果（bk_Price只要看一下语法突出显示就足以看出你的打字错误在哪里……我在Mac终端上没有语法突出显示。你在哪里看到它？这个问题似乎离题了，因为它是关于typo@Klinetel：此处有语法突出显示。在
bk_类别之前有双引号而不是单引号在ELSE子句中。