@ -6,9 +6,6 @@ QUERY: create index
QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤','’µ¡A01’¾å'); QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤','’µ¡A01’¾å');
QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹','’ʬB10’Ãæ'); QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹','’ʬB10’Ãæ');
QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼','’¿ÍZ01’²¼'); QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼','’¿ÍZ01’²¼');
QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ','‘»úA01‘ÉÏ');
QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('‘µç‘Äԑͼ‘ÐÎ','‘·ÖB01‘ÖÐ');
QUERY: insert into ’·×’»»’µ¡’ÍÑ’¸ì values('‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±','‘ÈËZ01‘ÏÂ');
QUERY: vacuum ’·×’»»’µ¡’ÍÑ’¸ì; QUERY: vacuum ’·×’»»’µ¡’ÍÑ’¸ì;
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì; QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì;
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
@ -16,10 +13,7 @@ QUERY: select * from
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤ |’µ¡A01’¾å | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤ |’µ¡A01’¾å |
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ |
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼ |’¿ÍZ01’²¼ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼ |’¿ÍZ01’²¼ |
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ |‘»úA01‘ÉÏ | (3 rows)
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ |
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô± |‘ÈËZ01‘Ï |
(6 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É = '’¿ÍZ01’²¼'; QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É = '’¿ÍZ01’²¼';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
@ -27,33 +21,23 @@ QUERY: select * from
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ |
(1 row) (1 row)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É ~ 'Z01 '; QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É ~* '’¿Íz01’²¼ ';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
------------------------------------+---------------+-------------- ------------------------------------+---------------+--------------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ |
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô± |‘ÈËZ01‘Ï | (1 row)
(2 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É ~* 'z01';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
------------------------------------+---------------+--------------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ |
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô± |‘ÈËZ01‘Ï |
(2 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É like '_Z01_'; QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É like '_Z01_';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
------------------------------------+---------------+-------------- ------------------------------------+---------------+--------------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ |
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô± |‘ÈËZ01‘Ï | (1 row)
(2 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É like '_Z%'; QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ʬ’Îà’¥³’¡¼’¥É like '_Z%';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
------------------------------------+---------------+-------------- ------------------------------------+---------------+--------------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼|’¿ÍZ01’²¼ |
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô± |‘ÈËZ01‘Ï | (1 row)
(2 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ÍÑ’¸ì ~ '’¥³’¥ó’¥Ô’¥å’¡¼’¥¿[’¥Ç’¥°]'; QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ÍÑ’¸ì ~ '’¥³’¥ó’¥Ô’¥å’¡¼’¥¿[’¥Ç’¥°]';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è
@ -69,17 +53,281 @@ QUERY: select * from
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ |
(2 rows) (2 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ÍÑ’¸ì ~ '‘µç‘ÄÔ[‘Ïԑͼ]'; QUERY: select *,character_length(’ÍÑ’¸ì) from ’·×’»»’µ¡’ÍÑ’¸ì;
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è ’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è|length
---------------+---------------+-------------- ---------------------------------------+---------------+--------------+------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤ |’µ¡A01’¾å | | 12
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ | ’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ | | 13
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼ |’¿ÍZ01’²¼ | | 12
(3 rows)
QUERY: select *,octet_length(’ÍÑ’¸ì) from ’·×’»»’µ¡’ÍÑ’¸ì;
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è|octet_length
---------------------------------------+---------------+--------------+------------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤ |’µ¡A01’¾å | | 36
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ | | 39
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼ |’¿ÍZ01’²¼ | | 36
(3 rows)
QUERY: select *,position('’¥Ç' in ’ÍÑ’¸ì) from ’·×’»»’µ¡’ÍÑ’¸ì;
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è|strpos
---------------------------------------+---------------+--------------+------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤ |’µ¡A01’¾å | | 7
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ | | 0
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼ |’¿ÍZ01’²¼ | | 0
(3 rows)
QUERY: select *,substring(’ÍÑ’¸ì from 10 for 4) from ’·×’»»’µ¡’ÍÑ’¸ì;
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è|substr
---------------------------------------+---------------+--------------+------------
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥Ç’¥£’¥¹’¥×’¥ì’¥¤ |’µ¡A01’¾å | |’¥×’¥ì’¥¤
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥°’¥é’¥Õ’¥£’¥Ã’¥¯’¥¹|’ʬB10’Ãæ | |’¥£’¥Ã’¥¯’¥¹
’¥³’¥ó’¥Ô’¥å’¡¼’¥¿’¥×’¥í’¥°’¥é’¥Þ’¡¼ |’¿ÍZ01’²¼ | |’¥é’¥Þ’¡¼
(3 rows)
QUERY: drop table ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
ERROR: Relation ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï Does Not Exist!
QUERY: create table ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï(‘Êõ‘Óï text, ‘·Ö‘Àà‘ºÅ varchar, ‘±¸‘×¢1A char(16));
QUERY: create index ‘¼Æ‘Ëã‘»ú‘Êõ‘Óïindex1 on ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï using btree(‘Êõ‘Óï);
QUERY: create index ‘¼Æ‘Ëã‘»ú‘Êõ‘Óïindex2 on ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï using btree(‘·Ö‘Àà‘ºÅ);
QUERY: insert into ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï values('‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ','‘»úA01‘ÉÏ');
QUERY: insert into ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï values('‘µç‘Äԑͼ‘ÐÎ','‘·ÖB01‘ÖÐ');
QUERY: insert into ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï values('‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±','‘ÈËZ01‘ÏÂ');
QUERY: vacuum ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ|
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ|
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ|
(3 rows)
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï where ‘·Ö‘Àà‘ºÅ = '‘ÈËZ01‘ÏÂ';
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ|
(1 row)
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï where ‘·Ö‘Àà‘ºÅ ~* '‘ÈËz01‘ÏÂ';
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ|
(1 row)
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï where ‘·Ö‘Àà‘ºÅ like '_Z01_';
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ|
(1 row)
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï where ‘·Ö‘Àà‘ºÅ like '_Z%';
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ|
(1 row)
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï where ‘Êõ‘Óï ~ '‘µç‘ÄÔ[‘Ïԑͼ]';
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ|
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ|
(2 rows)
QUERY: select * from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï where ‘Êõ‘Óï ~* '‘µç‘ÄÔ[‘Ïԑͼ]';
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a
---------------+---------+--------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ|
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ|
(2 rows)
QUERY: select *,character_length(‘Êõ‘Óï) from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a|length
---------------+---------+--------+------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ| | 5
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ| | 4
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ| | 5
(3 rows)
QUERY: select *,octet_length(‘Êõ‘Óï) from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a|octet_length
---------------+---------+--------+------------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ| | 15
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ| | 12
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ| | 15
(3 rows)
QUERY: select *,position('‘ÏÔ' in ‘Êõ‘Óï) from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a|strpos
---------------+---------+--------+------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ| | 3
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ| | 0
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ| | 0
(3 rows)
QUERY: select *,substring(‘Êõ‘Óï from 3 for 4) from ‘¼Æ‘Ëã‘»ú‘Êõ‘Óï;
‘Êõ‘Óï |‘·Ö‘Àà‘ºÅ|‘±¸‘×¢1a|substr
---------------+---------+--------+---------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ| |‘Ïԑʾ‘ÆÁ
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ| |‘ͼ‘ÐÎ
‘µç‘ÄÔ‘³Ì‘Ðò‘Ô±|‘ÈËZ01‘ÏÂ| |‘³Ì‘Ðò‘Ô±
(3 rows)
QUERY: drop table “ͪ“ß©“Ѧ“¿ë“¾î;
ERROR: Relation “ͪ“ß©“Ѧ“¿ë“¾î Does Not Exist!
QUERY: create table “ͪ“ß©“Ѧ“¿ë“¾î (“¿ë“¾î text, “Ý“׾“ÄÚ“µå varchar, “ºñ“°í1A“¶ó“±¸ char(16));
QUERY: create index “ͪ“ß©“Ѧ“¿ë“¾îindex1 on “ͪ“ß©“Ѧ“¿ë“¾î using btree (“¿ë“¾î);
QUERY: create index “ͪ“ß©“Ѧ“¿ë“¾îindex2 on “ͪ“ß©“Ѧ“¿ë“¾î using hash (“Ý“׾“ÄÚ“µå);
QUERY: insert into “ͪ“ß©“Ѧ“¿ë“¾î values('“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ', '“ѦA01“ß¾');
QUERY: insert into “ͪ“ß©“Ѧ“¿ë“¾î values('“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º', '“ÝÂB10“ñé');
QUERY: insert into “ͪ“ß©“Ѧ“¿ë“¾î values('“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó', '“ìÑZ01“ù»');
QUERY: vacuum “ͪ“ß©“Ѧ“¿ë“¾î;
QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î;
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
------------------------+------------+--------------
“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ |
“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé |
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» |
(3 rows)
QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î where “Ý“׾“ÄÚ“µå = '“ìÑZ01“ù»';
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
------------------------+------------+--------------
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» |
(1 row)
QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î where “Ý“׾“ÄÚ“µå ~* '“ìÑz01“ù»';
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
------------------------+------------+--------------
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» |
(1 row)
QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î where “Ý“׾“ÄÚ“µå like '_Z01_';
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
------------------------+------------+--------------
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» |
(1 row)
QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î where “Ý“׾“ÄÚ“µå like '_Z%';
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
------------------------+------------+--------------
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» |
(1 row)
QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î where “¿ë“¾î ~ '“ÄÄ“Ç»“ÅÍ[“µð“±×]';
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
------------------------+------------+--------------
“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ |
“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé |
(2 rows) (2 rows)
QUERY: select * from ’·×’»»’µ¡’ÍÑ’¸ì where ’ÍÑ’¸ì ~* '‘µç‘ÄÔ[‘Ïԑͼ]'; QUERY: select * from “ͪ“ß©“Ѧ“¿ë“¾î where “¿ë“¾î ~* '“ÄÄ“Ç»“ÅÍ[“µð“±× ]';
’ÍÑ’¸ì |’ʬ’Îà’¥³’¡¼’¥É|’È÷’¹Í1a’¤À’¤è “¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸
---------------+---------------+-------------- ------------------------+ ------------+--------------
‘µç‘ÄÔ‘Ïԑʾ‘ÆÁ|‘»úA01‘ÉÏ | “ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ |
‘µç‘Äԑͼ‘ÐÎ |‘·ÖB01‘ÖÐ | “ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé |
(2 rows) (2 rows)
QUERY: select *,character_length(“¿ë“¾î) from “ͪ“ß©“Ѧ“¿ë“¾î;
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸|length
------------------------+------------+--------------+------
“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ | | 8
“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé | | 7
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» | | 8
(3 rows)
QUERY: select *,octet_length(“¿ë“¾î) from “ͪ“ß©“Ѧ“¿ë“¾î;
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸|octet_length
------------------------+------------+--------------+------------
“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ | | 24
“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé | | 21
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» | | 24
(3 rows)
QUERY: select *,position('“µð' in “¿ë“¾î) from “ͪ“ß©“Ѧ“¿ë“¾î;
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸|strpos
------------------------+------------+--------------+------
“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ | | 4
“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé | | 0
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» | | 0
(3 rows)
QUERY: select *,substring(“¿ë“¾î from 3 for 4) from “ͪ“ß©“Ѧ“¿ë“¾î;
“¿ë“¾î |“Ý“׾“ÄÚ“µå|“ºñ“°í1a“¶ó“±¸|substr
------------------------+------------+--------------+------------
“ÄÄ“Ç»“ÅÍ“µð“½º“ÇÓ·¹“ÀÌ|“ѦA01“ß¾ | |“ÅÍ“µð“½º“ÇÃ
“ÄÄ“Ç»“ÅÍ“±×“·¡“ÇÈ“½º |“ÝÂB10“ñé | |“ÅÍ“±×“·¡“ÇÈ
“ÄÄ“Ç»“ÅÍ“ÇÁ“·Î“±×“·¡“¸Ó|“ìÑZ01“ù» | |“ÅÍ“ÇÁ“·Î“±×
(3 rows)
QUERY: drop table test;
ERROR: Relation test Does Not Exist!
QUERY: create table test (t text);
QUERY: insert into test values('ENGLISH');
QUERY: insert into test values('FRAN<EFBFBD> ÇAIS');
QUERY: insert into test values('ESPA<EFBFBD> ÑOL');
QUERY: insert into test values('<EFBFBD> ÍSLENSKA');
QUERY: insert into test values('ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA');
QUERY: vacuum test;
QUERY: select * from test;
t
------------------------------------
ENGLISH
FRAN<EFBFBD> ÇAIS
ESPA<EFBFBD> ÑOL
<EFBFBD> ÍSLENSKA
ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA
(5 rows)
QUERY: select * from test where t = 'ESPA<EFBFBD> ÑOL';
t
--------
ESPA<EFBFBD> ÑOL
(1 row)
QUERY: select * from test where t ~* 'espa<EFBFBD> Ñol';
t
------------------------------------
ESPA<EFBFBD> ÑOL
ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA
(2 rows)
QUERY: select *,character_length(t) from test;
t |length
------------------------------------+------
ENGLISH | 7
FRAN<EFBFBD> ÇAIS | 8
ESPA<EFBFBD> ÑOL | 7
<EFBFBD> ÍSLENSKA | 8
ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA| 33
(5 rows)
QUERY: select *,octet_length(t) from test;
t |octet_length
------------------------------------+------------
ENGLISH | 7
FRAN<EFBFBD> ÇAIS | 9
ESPA<EFBFBD> ÑOL | 8
<EFBFBD> ÍSLENSKA | 9
ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA| 36
(5 rows)
QUERY: select *,position('L' in t) from test;
t |strpos
------------------------------------+------
ENGLISH | 4
FRAN<EFBFBD> ÇAIS | 0
ESPA<EFBFBD> ÑOL | 7
<EFBFBD> ÍSLENSKA | 3
ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA| 4
(5 rows)
QUERY: select *,substring(t from 3 for 4) from test;
t |substr
------------------------------------+------
ENGLISH |GLIS
FRAN<EFBFBD> ÇAIS |AN<EFBFBD> ÇA
ESPA<EFBFBD> ÑOL |PA<EFBFBD> ÑO
<EFBFBD> ÍSLENSKA |LENS
ENGLISH FRAN<EFBFBD> ÇAIS ESPA<EFBFBD> ÑOL <EFBFBD> ÍSLENSKA|GLIS
(5 rows)
Bruce Momjian
28 years ago