今天,写存储过程时写成了:if...then...else if....else...end if.能编译通过,但是有问题,后来实在是找不到问题怀疑写错了这个语句,后来在网上查了一下,结果不是else if 而是elsif.改过来后就正常了。 Oracle/PLSQL: IF-THEN-ELSE Statement There are three different syntaxes
PLSQL: IF-THEN-ELSE There are three different syntaxes for these types of statements. Syntax #1: IF-THEN IF condition THEN {...statements...} END IF; Syntax #2: IF-THEN-ELSE IF condition THEN {...statements...} ELSE {...statements...} END IF; Syntax #3: IF-THEN-ELSIF IF con...
The syntax of this statement is: IF boolean-expression THEN IF boolean-expression THEN statements ELSE IF boolean-expression THEN statements END IF; You can nest IF statements so that alternative IF statements are invoked, depending on whether the conditions of an outer IF statement evaluate to TR...
2) PL/pgSQL if-then-else statement The if...then...else statement executes the statements in the if branch if the condition evaluates to true; otherwise, it executes the statements in the else branch. Here’s the syntax of the if...then...else statement: if condition then statements;...
syntax : IF condition1 THEN action1; [ELsIF condition2 THEN action2; [ELSE action3;] END IF; eg : IF condition THEN SQL or PL-SQL Commands; ELSE SQL or PL-SQL Statements; END IF; eg : DECLARE l_x NUMBER := 10; l_y NUMBER := 20; ...
TheCode Foldingfunctionality allows you to show or hide specific sections of PL/SQL code. You could for example fold all procedures and functions within a package, and unfold just the one that you are interested in. As another example you can fold structures like loops and if/then/else state...
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postgresql 数据 大小写敏感 plsql 大写 PostgreSQL和Oracle一样,默认都是大小写不敏感的,但两者仍然存在区别: Oracle:默认是大小写不敏感,表名、字段名等不区分大小写,小写字母会自动转换为大写字母; 需要用小写字母时需要使用双引号,或借助函數upper()和lower();...
TO_CHARの詳細は、『Oracle Database SQL言語リファレンス』を参照してください。) 例2-7 複数行コメント DECLARE some_condition BOOLEAN; pi NUMBER := 3.1415926; radius NUMBER := 15; area NUMBER; BEGIN /* Perform some simple tests and assignments */ IF 2 + 2 = 4 THEN some_condition :...
问在PL/PGSQL存储过程的声明部分中使用'Case‘或'If’语句EN所有在块里使用的变量都必须在块的声明段...