Docs: Automated update from IvorySQL/ivorysql_docs commit 31d021bfe606a60dee9c3218a638bd461dd70ef5

docs/cn/ivorysql-doc/v4.4/v4.4/8.html

@@ -3256,50 +3256,53 @@ <h4 id="示例-7"><a class="anchor" href="#示例-7"></a>7.1.3. 示例</h4>
 
 alter table tb_test1 add (name varchar);
 
-alter table tb_test1 add (adress varchar, num int, flg1 char);
+ALTER TABLE tb_test1
+ ADD adress varchar,
+ ADD num int,
+ ADD flg1 char;
 
 \d tb_test1
-  Table "public.tb_test1"
- Column |  Type  | Collation | Nullable | Default
---------+-------------------+-----------+----------+---------
- id | integer  | | |
- flg | character(10) | | |
- name | character varying | | |
- adress | character varying | | |
- num | integer  | | |
- flg1 | character(1) | | |
+ Table "public.tb_test1"
+ Column | Type | Collation | Nullable | Default
+--------+-----------------+-----------+----------+---------
+ id | pg_catalog.int4 | | |
+ flg | char(10)  | | |
+ name | varchar2(4000)  | | |
+ adress | varchar2(4000)  | | |
+ num | pg_catalog.int4 | | |
+ flg1 | char(1)  | | |
 
 MODIFY:
 create table tb_test2(id int, flg char(10), num varchar);
 
 insert into tb_test2 values('1', 2, '3');
 
-alter table tb_test2 modify(id char);
+ALTER TABLE tb_test2 ALTER COLUMN id TYPE char;
 
 \d tb_test2
-  Table "public.tb_test2"
- Column |  Type  | Collation | Nullable | Default
---------+-------------------+-----------+----------+---------
- id | character(1) | | |
- flg | character(10) | | |
- num | character varying | | |
+ Table "public.tb_test2"
+ Column | Type | Collation | Nullable | Default
+--------+----------------+-----------+----------+---------
+ id | char(1)  | | |
+ flg | char(10)  | | |
+ num | varchar2(4000) | | |
 
 DROP:
 create table tb_test3(id int, flg1 char(10), flg2 char(11), flg3 char(12), flg4 char(13),
  flg5 char(14), flg6 char(15));
 
-alter table tb_test3 drop column(id);
+ALTER TABLE tb_test3 DROP id;
 
 \d tb_test3
-  Table "public.tb_test3"
- Column |  Type  | Collation | Nullable | Default
---------+---------------+-----------+----------+---------
- flg1 | character(10) | | |
- flg2 | character(11) | | |
- flg3 | character(12) | | |
- flg4 | character(13) | | |
- flg5 | character(14) | | |
- flg6 | character(15) | | |</code></pre>
+ Table "public.tb_test3"
+ Column | Type | Collation | Nullable | Default
+--------+----------+-----------+----------+---------
+ flg1 | char(10) | | |
+ flg2 | char(11) | | |
+ flg3 | char(12) | | |
+ flg4 | char(13) | | |
+ flg5 | char(14) | | |
+ flg6 | char(15) | | |</code></pre>
 </div>
 </div>
 </div>
@@ -3348,12 +3351,10 @@ <h4 id="使用"><a class="anchor" href="#使用"></a>7.2.3. 使用</h4>
 <div class="content">
 <pre class="highlightjs highlight"><code class="language-undefined hljs" data-lang="undefined">create table tb_test4(id int, flg char(10));
 
-insert into tb_test4 values(1, '2'), (3, '4'), (5, '6');
+insert into tb_test4 values(1, '2'), (5, '6');
 
 delete from tb_test4 where id = 1;
 
-delete tb_test4 where id = 3;
-
 table tb_test4;
  id | flg
 ----+------------
@@ -3459,11 +3460,11 @@ <h3 id="union"><a class="anchor" href="#union"></a>7.5. UNION</h3>
 <h4 id="示例-10"><a class="anchor" href="#示例-10"></a>7.5.1. 示例</h4>
 <div class="listingblock">
 <div class="content">
-<pre class="highlightjs highlight"><code class="language-undefined hljs" data-lang="undefined">select null union select null union select 1.2;
- ?column?
-----------
-  1.2
-
+<pre class="highlightjs highlight"><code class="language-undefined hljs" data-lang="undefined">SELECT 100 AS value FROM DUAL UNION SELECT 200 AS value FROM DUAL UNION SELECT 100 AS value FROM DUAL;
+ value
+-------
+ 100
+ 200
 (2 rows)</code></pre>
 </div>
 </div>
@@ -3782,12 +3783,6 @@ <h5 id="例子-9"><a class="anchor" href="#例子-9"></a>7.9.5.3. 例子</h5>
  next_day
 ---------------------
  2020-07-05 19:43:51
-(1 row)
-
-select next_day(oracle.date '2020-09-15 12:13:29', 6) from dual;
- next_day
----------------------
- 2020-09-18 12:13:29
 (1 row)</code></pre>
 </div>
 </div>
@@ -3836,12 +3831,6 @@ <h5 id="例子-10"><a class="anchor" href="#例子-10"></a>7.9.6.3. 例子</h5>
  last_day
 ---------------------
  2020-11-30 19:20:40
-(1 row)
-
-select last_day('-0004-2-1 13:27:19'::oracle.date) from dual;
- last_day
-----------------------
- -0004-02-29 13:27:19
 (1 row)</code></pre>
 </div>
 </div>
@@ -4322,31 +4311,19 @@ <h5 id="示例-18"><a class="anchor" href="#示例-18"></a>7.10.5.3. 示例</h5>
 <pre class="highlightjs highlight"><code class="language-undefined hljs" data-lang="undefined">select to_yminterval('P1Y-2M2D');
  to_yminterval
 ---------------
- 10 mons
+ +000000000-10
 (1 row)
 
 select to_yminterval('P1Y2M2D');
  to_yminterval
 ---------------
- 1 year 2 mons
-(1 row)
-
-select to_yminterval('-P1Y2M2D');
- to_yminterval
-------------------
- -1 years -2 mons
-(1 row)
-
-select to_yminterval('-P1Y2M2D');
- to_yminterval
-------------------
- -1 years -2 mons
+ +000000001-02
 (1 row)
 
 select to_yminterval('-01-02');
-  to_yminterval
-------------------
- -1 years -2 mons
+ to_yminterval
+---------------
+ -000000001-02
 (1 row)</code></pre>
 </div>
 </div>
@@ -4371,39 +4348,21 @@ <h5 id="示例-19"><a class="anchor" href="#示例-19"></a>7.10.6.3. 示例</h5>
 <div class="listingblock">
 <div class="content">
 <pre class="highlightjs highlight"><code class="language-undefined hljs" data-lang="undefined">select to_dsinterval('100 00 :02 :00');
- to_dsinterval
--------------------
- 100 days 00:02:00
+  to_dsinterval
+-------------------------------
+ +000000100 00:02:00.000000000
 (1 row)
 
 select to_dsinterval('-100 00:02:00');
- to_dsinterval
----------------------
- -100 days -00:02:00
+  to_dsinterval
+-------------------------------
+ -000000100 00:02:00.000000000
 (1 row)
 
 select to_dsinterval(NULL);
  to_dsinterval
 ---------------
 
-(1 row)
-
-select to_dsinterval('-P100D');
- to_dsinterval
----------------
- -100 days
-(1 row)
-
-select to_dsinterval('-P100DT20H');
- to_dsinterval
----------------------
- -100 days -20:00:00
-(1 row)
-
-select to_dsinterval('-P100DT20S');
- to_dsinterval
----------------------
- -100 days -00:00:20
 (1 row)</code></pre>
 </div>
 </div>