搜索式CASE语句有个能够产生boolean(true,false,null)的搜索条件,当特定搜索条件计算结果为TRUE时,会执行与该条件相关的语句组合。搜索式CASE语句的语法如下所示: CASE WHEN SEARCH CONDIDTION 1 THEN STATEMENT 1; WHEN SEARCH CONDIDTION2 THEN STATEMENT 2; ... WHEN SEARCH CONDIDTIONN THEN STATEMENT N; EL...
PLSQL 简单case语句 1 简单的case语句会给出一个表达式，并将可能发生的结果与其做比较，如果匹配成功则执行对应的语句 2 语法：[ <<lable_name>> ]CASE case_operandWHEN when_operand1 THEN statement1;[WHEN when_operand2 THENstatement1;] ...[ELSEstatementN]END CASE [ lable_name ];3 说明：<<labl...
In this example, if the deptno column has a 10 in it, the SQL query will return the value accounting rather than the number 10. If the deptno is not 10, 20, 30, or 40, then the CASE statement will fall through to the ELSE clause, which will return unassigned. Note that with a s...
2 Writing CASE statement Error ORA-00923 3 ORA-00905: missing keyword 2 Missing Keyword (ORA-00905) - Oracle SQL Case Statement 2 SQL Case statement throwing missing keyword error 0 Oracle. Missing keyword when using case statement. Error 00905 0 "ORA-00905: missing keyword" for case...
97 CASE .. WHEN expression in Oracle SQL 0 Oracle SQL Use of Case When 0 Oracle - Case Statement 0 Using Case When Clause in Where Clause 0 SQL "case when" query 0 case when then IN 1 Conditionally use CASE...WHEN - Oracle SQL 0 how can i use 'CASE WHEN' syntax in...
oracle.javatools.db.sql.AbstractSQLFragment oracle.javatools.db.sql.CaseStatement.WhenThen All Implemented Interfaces: ChildDBObject,DBObject,SQLFragment,Copyable Enclosing class: CaseStatement public static classCaseStatement.WhenThenextendsAbstractSQLFragment ...
当出现"SQL statement ignored"错误时,通常是由于SQL语句中有语法错误或者逻辑错误导致Oracle无法正确解析SQL语句。要解决这个问题,需要检查SQL语句中的各个部分,确保语法正确,逻辑清晰,没有拼写错误或者其他错误。 以下是一些常见的导致"SQL statement ignored"错误的原因和解决方法: 检查SQL语句中的关键字和标点符号是否...
After each stage of execution, the cursor retains enough information about the SQL statement to re-execute the statement without starting over, as long as no other SQL statement has been associated with that cursor. This is illustrated in Figure 7-1. Notice that the statement can be re-...
是指在Oracle数据库中,使用SELECT语句查询数据时,可以将一个SELECT语句作为子查询嵌套在另一个SELECT语句的CASE语句中。 具体来说,CASE语句是一种条件表达式,用于根据条件返回不同的结果。而子查询是指在一个查询中嵌套另一个查询,内部查询的结果作为外部查询的一部分。 在使用Oracle数据库时,可以将SELECT语句作为子查...
voidclearDefines() throws java.sql.SQLException Lets you clear previously defined types for the define-columns of this statement. This is usefull if you want to reuse this statement for a different query. After callingclearDefines, you can either perform defines by callingdefineColumnType/defineColu...