http://www.ludou.org/update-multiple-rows-with-different-values-and-a-single-sql-query.html
-- update multiple rows satisfying the conditionUPDATECustomersSETcountry ='NP'WHEREage =22; Run Code Here, the SQL command changes the value of thecountrycolumn toNPifageis22. If there is more than one row whereageequals to22, all the matching rows will be modified. Update all Rows We ...
SQL UPDATE multiple rows The followingUPDATEstatement increases the salary by 2% for employees whose salary is less than $2000: UPDATEemployeesSETsalary = salary *1.02WHEREsalary <2000;Code language:SQL (Structured Query Language)(sql) Thee employees whose salary is less than 2K received the promo...
A positioned update using a WHERE CURRENT OF clause updates the single row at the current position of the cursor. This can be more accurate than a searched update that uses a WHERE <search_condition> clause to qualify the rows to be updated. A searched update modifies multiple rows when the...
3-Inserting Multiple Rows 插入多行 INSERT INTO … VALUES (), (), () 4-Inserting Hierarchical Rows 插入分层行 5-Creating a Copy of a Table 创建表复制 / CREATE TABLE … AS 6-Updating a Single Row 更新单行 / UPDATE … SET … WHERE … 7-Updating Multiple Rows 更新多行 8-Using Subqueri...
https://stackoverflow.com/questions/18797608/update-multiple-rows-in-same-query-using-postgresql 问题描述: SQL update fields of one table from fields of another one I have two tables: A [ID, column1, column2, column3] B [ID, column1, column2, column3, column4] A will always be ...
Multiple-table语法：UPDATE [LOW_PRIORITY] [IGNORE] table_references SET col_name1=expr1 [, col_name2=expr2 ...] [WHERE where_definition]可以这样用UPDATE items,month SET items.price=month.price WHERE items.id=month.id;只能修改一个表，但是不能象你那样同时修改两张表。如果...
A positioned update using a WHERE CURRENT OF clause updates the single row at the current position of the cursor. This can be more accurate than a searched update that uses a WHERE <search_condition> clause to qualify the rows to be updated. A searched update modifies multiple rows when ...
If multiple database rows match a filter, sqlupdate updates them with the same data. If a single database row matches multiple filters, its final state matches the data corresponding to the last matching filter. Example: rf = rowfilter("productnumber"); rf = rf.productnumber <= 5; Name-...
INSERT 语句激发 DML 触发器,新行在触发器执行期间加载到 插入的 表中。 UPDATE 语句读取该行的 LineTotal 列值,并将该值与 SubTotal 表的PurchaseOrderHeader 列中的现有值相加。 WHERE 子句确保 PurchaseOrderDetail 表中的更新行与 PurchaseOrderID 插入的 表中 行相匹配。