Обсуждение: Special characters

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Special characters

От
"Mihai Gheorghiu"
Дата:
I want to switch from MSAccess to Postgres.
1. I have memo fields that include new line characters (I don't know whether
it is actually a CR). How can this be exported to Postgres?
2. How do I query for strings that include single or double quotes (e.g.
O'Hara)?
Thank you all.


Re: Special characters

От
"Oliver Elphick"
Дата:
"Mihai Gheorghiu" wrote:
  >I want to switch from MSAccess to Postgres.
  >1. I have memo fields that include new line characters (I don't know whether
  >it is actually a CR). How can this be exported to Postgres?

Represent a newline by `\n'.

  >2. How do I query for strings that include single or double quotes (e.g.
  >O'Hara)?

Double the single quotes.  A double quote inside single quotes doesn't
need escaping.


junk=# select * from x;
    x
----------
 O'Hara
 Connolly
(2 rows)

junk=# select * from x where x like '%''%';
   x
--------
 O'Hara
(1 row)

junk=# select * from x where x ~ '''';
   x
--------
 O'Hara
(1 row)

--
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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                 ========================================
     "I am crucified with Christ; nevertheless I live; yet
      not I, but Christ liveth in me; and the life which I
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      of God, who loved me, and gave himself for me."
                                 Galatians 2:20