此刻,你应该知道levyId+""当levyId为null时的值是字符串null的原因了吧! //in java.lang.String/*** Returns the string representation of the {@codeObject} argument. * *@paramobj an {@codeObject}. *@returnif the argument is {@codenull}, then a string equal to * {@code"null"}; otherwi...
已解决: nested exception is java.sql.SQLDataException: ORA-01476: divisor is equal to zero 问题 oracle 除零异常,且sql重复语句过多 思路 使用decode 或者 NULLIF 解决除零异常问题 原SQL case when冗余 可以用 case when in 简化 解决 在这个修改后的SQL语句中,NULLIF函数用于处理zzje、zxjje和jxjje计算...
isNull判断property字段是否是null,用isEmpty更方便,包含了null和空字符串 例子一: isEqual相当于equals,数字用得多些,一般都是判断状态值 <isEqual property="state" compareValue="0"> < /isEqual> 或 <isEqual property="state" compareProperty="nextState"> < /isEqual> 例子一: 传入的map或者类的属性n...
isNull判断property字段是否是null,用isEmpty更方便,包含了null和空字符串 例子一: isEqual相当于equals,数字用得多些,一般都是判断状态值 <isEqual property="state" compareValue="0"> < /isEqual> 或 <isEqual property="state" compareProperty="nextState"> < /isEqual> 例子一: 传入的map或者类的属性n...
0.0.0.0/0 10 NULL Vlan100 10.1.1.1 R/-/- Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set [SwitchC] display isis route Route information for IS-IS(1) --- Level-1 IPv4 Forwarding Table --- IPv4 Destination IntCost ExtCost ExitInterface NextHop Flags --...
RECYCLE buffer cache 0 DEFAULT 2K buffer cache 0 DEFAULT 4K buffer cache 0 DEFAULT 8K buffer cache 0 DEFAULT 16K buffer cache 0 DEFAULT 32K buffer cache 0 ASM Buffer Cache 0 13 rows selected. sga_max_size:SGA同意的最大值,改动必须重新启动; ...
This is because if a == null or a.b == null, the null-conditional (?.) chain stops evaluating and evaluates to null. And we know from the above that null is not equal to 0; thus If you don'...
interface Address { Optional<String> getState(); } @Test public void shouldDefaultDeepMockOptionalsToEmpty() { final Address address = mock(Address.class, RETURNS_DEEP_STUBS); assertThat(address.getState()).isEqualTo(Optional.empty()); // <--- fails } @Test public void shouldDefaultMockOp...
StrIsIntlEqualA 函式 (shlwapi.h) 發行項 2024/11/20 意見反應 本文內容 語法 參數 傳回值 言論 要求 比較兩個字串開頭的指定字元數,以判斷它們是否相等。語法C++ 複製 BOOL StrIsIntlEqualA( BOOL fCaseSens, [in] PCSTR pszString1, [in] PCSTR pszString2, int nChar ); ...
<isEqualprepend="and"property="FCOMLVL"compareValue="-1">FCOMLVL IS NULL</isEqual> 1.2.2 字段等于具体的值:column!="value" 语法: <isNotEqual prepend="" property="" compareValue=""></isNotEqual> 举例: <isNotEqualprepend="and"property="FPLVCODE"compareValue="1">FPLVCODE=#FPLVCODE#</is...