The PL/SQL Beautifier has been enhanced in the following ways: — NoFormat Start / — NoFormat End directives can be used to suppress formatting Update select lists are now formatted properly Nested case expressions are now parsed and formatted properly Cursor parameters are now formatted in accor...
5Searched CASE statement The searched CASE statementhas no selector, and it's WHEN clauses contain search conditions that yield Boolean values. 6nested IF-THEN-ELSE You can use oneIF-THENorIF-THEN-ELSIFstatement inside anotherIF-THENorIF-THEN-ELSIFstatement(s). ...
この例では、dept_viewビューに、CASTファンクション(『Oracle Database SQL言語リファレンス』を参照)によって作成された従業員のネストした表(emplist)が含まれます。この例では、emplist列を変更するため、その列に対するINSTEAD OFトリガーを作成します。 -- Create type of nested table ...
PL/SQL Nested Block– explains what a PL/SQL nested block is and how to apply it in PL/SQL programming. PL/SQL IF Statement– introduces you to various forms of the PL/SQL IF statement includingIF-THEN,IF-THEN-ELSEandIF-THEN-ELSIFstatement. PL/SQL CASE Statement– shows you how to us...
在PL/SQL中,向前引用是不允许的。所以我们必须在其它语句引用游标之前声明它。声明游标时,我们需要为它命名,并用下面的语法把它和一个查询相关联: CURSOR cursor_name[(parameter[, parameter]...)][RETURN return_type]IS select_statement; 1. 2.
COLLECTION之Nested Table嵌套表 嵌套表類似于高級語言中的陣列.不同的是高級語言的下標不能為負值,高級語言的元素個數是有限制的, 而嵌套表的元素個數是沒有限制的. 嵌套表和PL/SQL表類似,但嵌套表可以作為表列的數據類型,而PL/SQL表不能作為表列的數據類型 當在表列中使用嵌套表時,必須首先使用CREATE TYPE ...
a.CASE CASE selector WHEN EXPRESSION 1 THEN STATEMENT 1; WHEN EXPRESSION 2 THEN STATEMENT 2; ... WHEN EXPRESSION N THEN STATEMENT N; ELSE STATEMENT N+1; END CASE; eg: case v_num_flg when 0 then dbms_output.put_line('...'); else dbms...
NO_DATA_FOUND 01403 +100 It is raised when a SELECT INTO statement returns no rows. NOT_LOGGED_ON 01012 -1012 It is raised when a database call is issued without being connected to the database. PROGRAM_ERROR 06501 -6501 It is raised when PL/SQL has an internal problem. ROWTYPE_MISMA...
The CREATE TYPE (Nested table) statement defines an associative array indexed by INTEGER data type. Invocation This statement can be executed from the DB2® command line processor (CLP), any supported interactive SQL interface, an application, or a routine. ...
The value of theCASEoperand andWHENoperands in a simpleCASEstatement can be any PL/SQL type other thanBLOB,BFILE, an object type, a PL/SQL record, an index-by-table, a varray, or a nested table. If theELSEclause is omitted, the system substitutes a default action. For aCASEstatement,...