A cursor is a SELECT statement that is defined within the declaration section of your PLSQL code. We'll take a look at three different syntaxes for cursors. Cursor without parameters (simplest) The basic syntax for a cursor without parameters is: CURSOR cursor_name IS SELECT_statement; For ...
of emps is:4 PL/SQL procedure successfully completed. Here the code declares a cursor that will return a single record. This cursor is called an explicit cursor. You explicitly declare it in a declaration section of the program and manipulate the cursor else where in the program. ...
This Oracle tutorial explains how to declare a cursor in Oracle / PLSQL with syntax and examples. A cursor is a SELECT statement that is defined within the declaration section of your PLSQL code.
Oracle PL/SQL Tutorial Cursor Cursor DeclarationSQL> SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL, 2 ENAME VARCHAR2(10), 3 JOB VARCHAR2(9), 4 MGR NUMBER(4), 5 HIREDATE DATE, 6 SAL NUMBER(7, 2), 7 COMM NUMBER(7, 2), 8 DEPTNO NUMBER(2)); Table created. SQL> SQL> ...
sharedcursor就是指缓存在librarycache(SGA下的Shared Pool)里的一种library cache object,说白了就是指缓存在library cache里的sql和匿名pl/sql。 它们是Oracle缓存在librarycache中的几十种librarycache object之一,它所属于的namespace是CRSR(也就是cursor的缩写)。
You can use a query hint within a cursor declaration. However, if you also use theFOR UPDATE OFclause, specifyOPTION (<query_hint>)afterFOR UPDATE OF. SQL Server implicitly converts the cursor to another type if clauses inselect_statementconflict with the functionality of the requested cursor...
You can use a query hint within a cursor declaration. However, if you also use theFOR UPDATE OFclause, specifyOPTION (<query_hint>)afterFOR UPDATE OF. SQL Server implicitly converts the cursor to another type if clauses inselect_statementconflict with the functionality of the requested cursor...
In this syntax, thecursor_nameis the name of the cursor declared in the declaration section. When you open a cursor, Oracle parses the query, binds variables, and executes the associated SQL statement. Oracle also determines an execution plan, associates host variables andcursor parameterswith th...
sharedcursor就是指缓存在librarycache(SGA下的Shared Pool)里的一种library cache object,说白了就是指缓存在library cache里的sql和匿名pl/sql。 它们是Oracle缓存在librarycache中的几十种librarycache object之一,它所属于的namespace是CRSR(也就是cursor的缩写)。
SourceDeclaration SparseColumnOption SpatialIndexingSchemeType SpatialIndexOption SpatialIndexRegularOption Sql100ScriptGenerator Sql110ScriptGenerator Sql120ScriptGenerator Sql130ScriptGenerator Sql140ScriptGenerator Sql150ScriptGenerator Sql160ScriptGenerator Sql80ScriptGenerator Sql90ScriptGenerator SqlCommandIdentifier ...