,"Table Update failed, SQLCODE=",uprtn.%SQLCODE," ",uprtn.%Message,! } } 在下面的嵌入式SQL示例中,VALUES:array() UPDATE修改选定记录中的数组中列号指定的字段值。 只能在嵌入式SQL中进行VALUES:array()更新。 注意,此语法要求您通过DDL列号指定每个值(包括在列计数中RowID列(列1),但不为这个不可...
1、创建两个测试表，create table test_up_a(id number, value varchar2(100));create table test_up_b(id number, value varchar2(100));2、分别往两个表中插入数据；insert into test_up_a values(1,'A1');insert into test_up_a values(2,'A2');insert into test_up_a values(3,...
select-table2[[AS]t-alias]}][WHEREcondition-expression]UPDATE[%keyword]table-ref[[AS]t-alias]value-assignment-statement[WHERECURRENTOFcursor]value-assignment-statement::=SETcolumn1=scalar-expression1{,column2=scalar-expression2}...|[(column1{,column2}...)]VALUES...
$ids = implode(',', array_keys($display_order)); $sql = "UPDATE categories SET display_order = CASE id "; foreach ($display_order as $id => $ordinal) { $sql .= sprintf("WHEN %d THEN %d ", $id, $ordinal); // 拼接SQL语句 } $sql .= "END WHERE id IN ($ids)"; echo $...
在一次准备处理历史数据sql时,出现这么一个问题:You can't specify target table '表名' for update in FROM clause,大致的意思就是:不能在同一张表中先select再update。 在此进行一下复盘沉淀,使用测试sql复现当时的场景(mysql是8版本),准备测试数据: ...
I recently found myself forgetting the exact syntax to update a value in a table based on the sum of another set of values in another. You cannot, for example, do this: UPDATE m SET m.Foo = SUM(s.valsum) FROM [MASTER] m INNER JOIN [Foos] s ON s.ID = m.ID
INSERTINTO<target>VALUES<wa>.INSERT<target>FROM<wa>. 多条数据. INSERT<target>FROMTABLE<itab> [ACCEPTING DUPLICATE KEYS] 插入数据时,避免有相同主键引起dump error错误,使用ACCEPTING DUPLICATE。此时sy-subrc返回4. 三、UPDATE 一条数据 UPDATE<target>FROM<wa>."表结构相同 ...
create table if not exists acid_update_pt(id bigint) partitioned by(ds string) tblproperties ("transactional"="true"); --添加分区。 alter table acid_update_pt add if not exists partition (ds='2019'); --插入数据。 insert overwrite table acid_update_pt partition (ds='2019') values(1)...
.Table1 VALUES(1, 10.0), (1, 20.0); INSERT INTO dbo.Table2 VALUES(1, 0.0); GO UPDATE dbo.Table2 SET dbo.Table2.ColB = dbo.Table2.ColB + dbo.Table1.ColB FROM dbo.Table2 INNER JOIN dbo.Table1 ON (dbo.Table2.ColA = dbo.Table1.ColA); GO SELECT ColA, ColB FROM dbo.Table2;...
.Table1 VALUES(1, 10.0), (1, 20.0); INSERT INTO dbo.Table2 VALUES(1, 0.0); GO UPDATE dbo.Table2 SET dbo.Table2.ColB = dbo.Table2.ColB + dbo.Table1.ColB FROM dbo.Table2 INNER JOIN dbo.Table1 ON (dbo.Table2.ColA = dbo.Table1.ColA); GO SELECT ColA, ColB FROM dbo.Table2;...