Question:How can I insert multiple rows of explicit data in one INSERT command in Oracle? Answer:The following is an example of how you might insert 3 rows into thesupplierstable in Oracle, using an Oracle INSER
You can also use the INSERT ALL statement to insert multiple rows into more than one table in one command. For example, if you wanted to insert into both thesuppliersandcustomerstable, you could run the following SQL statement: INSERT ALL INTO suppliers (supplier_id, supplier_name) VALUES (...
We can use a combination of twofeatures in PL/SQL: BULK COLLECT: a clause to let you fetch multiple rows into a collection FORALL: a feature to let you execute the same DML statement multiple times for different values A combination of these should improve ourstored procedure. Here's what ...
--Delete any existing rows for 'Munising Falls' so that this --example can be executed multiple times DELETE FROM waterfalls WHERE falls_name='Munising Falls'; --Insert a new row using EMPTY_CLOB( ) to create a LOB locator INSERT INTO waterfalls (falls_name,falls_directions) VALUES ('Mu...
--Binding是在SQL语句里分配一个value给PL/SQL变量 --Bulk Binding是一次分配所有的数据,然后通过这个entire collection,在一个操作就可以完成两个引擎处理。 Typically, using bulk binds improves performance for SQL statements that affect four or more database rows.The more rows affected by a SQL statement...
Accepting and Returning Multiple Rows with Table Functions Invoker Rights Versus Definer Rights Understanding and Using Recursion Calling External Subprograms What Are Subprograms? Subprograms are named PL/SQL blocks that can take parameters and be invoked. PL/SQL has two types of subprograms calledproced...
Inserting PL/SQL Records into the Database Using a single variable of type RECORD or percent ROWTYPE in the VALUES clause instead of a list of columns, you may insert records into database rows using a PL/SQL-only extension of the INSERT command. This improves the readability and maintainabi...
PL/pgSQL approach The procedure is created thus: create procedure insert_rows(vs in varchar[]) language plpgsql as $$ declare this_v varchar(30) not null := '?'; begin rollback; foreach this_v in array vs loop insert into t(v) values(this_v); end loop; commit; end $$; ...
--静态SQL:当一个SQL语句所在的代码块被编译时,这个语句就完全指定的或者是固定的。--动态SQL:如果一个SQL语句直到运行时刻才被构造出来并执行,这个语句就是动态SQL语句--结果集: sql语句所请求的行集的和,结果集中会被缓存在SGA以提升访问数据和修改数据的性能--隐式游标:每一个SQL DML语句或者SELECT INTO PL...
--Binding 是在SQL 语句里分配一个value 给PL/SQL 变量 --Bulk Binding 是一次分配所有的数据,然后通过这个entire collection,在一个操作就可以完成两个引擎处理。 Typically, using bulk binds improves performance for SQL statements that affect four or more database rows. The more rows affected by a SQL...