ORACLE函数实现按汉字拼音首字母查询

1、创建oracle存储过程(网上拿来的的) 

CREATE OR REPLACE FUNCTION F_TRANS_PINYIN_CAPITAL_H(P_NAME IN VARCHAR2) RETURN VARCHAR2 AS
V_COMPARE VARCHAR2(100);
V_RETURN VARCHAR2(4000);
tmp  integer;
FUNCTION F_NLSSORT(P_WORD IN VARCHAR2) RETURN VARCHAR2 AS
BEGIN
RETURN NLSSORT(P_WORD, 'NLS_SORT=SCHINESE_PINYIN_M');
END;
BEGIN
V_COMPARE := F_NLSSORT(SUBSTR(P_NAME, 1, 1));

select length(SUBSTR(P_NAME, 1, 1)) - lengthb(SUBSTR(P_NAME, 1, 1)) into tmp from dual;

IF tmp=0 then
V_RETURN :=   SUBSTR(P_NAME, 1, 1);
RETURN V_RETURN;
END IF;

IF V_COMPARE >= F_NLSSORT(' 吖 ') AND V_COMPARE <= F_NLSSORT('驁 ') THEN
V_RETURN := V_RETURN || 'A';
ELSIF V_COMPARE >= F_NLSSORT('八 ') AND V_COMPARE <= F_NLSSORT('簿 ') THEN
V_RETURN := V_RETURN || 'B';
ELSIF V_COMPARE >= F_NLSSORT('嚓 ') AND V_COMPARE <= F_NLSSORT('錯 ') THEN
V_RETURN := V_RETURN || 'C';
ELSIF V_COMPARE >= F_NLSSORT('咑 ') AND V_COMPARE <= F_NLSSORT('鵽 ') THEN
V_RETURN := V_RETURN || 'D';
ELSIF V_COMPARE >= F_NLSSORT('妸 ') AND V_COMPARE <= F_NLSSORT('樲 ') THEN
V_RETURN := V_RETURN || 'E';
ELSIF V_COMPARE >= F_NLSSORT('发 ') AND V_COMPARE <= F_NLSSORT('猤 ') THEN
V_RETURN := V_RETURN || 'F';
ELSIF V_COMPARE >= F_NLSSORT('旮 ') AND V_COMPARE <= F_NLSSORT('腂 ') THEN
V_RETURN := V_RETURN || 'G';
ELSIF V_COMPARE >= F_NLSSORT('妎 ') AND V_COMPARE <= F_NLSSORT('夻 ') THEN
V_RETURN := V_RETURN || 'H';
ELSIF V_COMPARE >= F_NLSSORT('丌 ') AND V_COMPARE <= F_NLSSORT('攈 ') THEN
V_RETURN := V_RETURN || 'J';
ELSIF V_COMPARE >= F_NLSSORT('咔 ') AND V_COMPARE <= F_NLSSORT('穒 ') THEN
V_RETURN := V_RETURN || 'K';
ELSIF V_COMPARE >= F_NLSSORT('垃 ') AND V_COMPARE <= F_NLSSORT('擽 ') THEN
V_RETURN := V_RETURN || 'L';
ELSIF V_COMPARE >= F_NLSSORT('嘸 ') AND V_COMPARE <= F_NLSSORT('椧 ') THEN
V_RETURN := V_RETURN || 'M';
ELSIF V_COMPARE >= F_NLSSORT('拏 ') AND V_COMPARE <= F_NLSSORT('瘧 ') THEN
V_RETURN := V_RETURN || 'N';
ELSIF V_COMPARE >= F_NLSSORT('筽 ') AND V_COMPARE <= F_NLSSORT('漚 ') THEN
V_RETURN := V_RETURN || 'O';
ELSIF V_COMPARE >= F_NLSSORT('妑 ') AND V_COMPARE <= F_NLSSORT('曝 ') THEN
V_RETURN := V_RETURN || 'P';
ELSIF V_COMPARE >= F_NLSSORT('七 ') AND V_COMPARE <= F_NLSSORT('裠 ') THEN
V_RETURN := V_RETURN || 'Q';
ELSIF V_COMPARE >= F_NLSSORT('亽 ') AND V_COMPARE <= F_NLSSORT('鶸 ') THEN
V_RETURN := V_RETURN || 'R';
ELSIF V_COMPARE >= F_NLSSORT('仨 ') AND V_COMPARE <= F_NLSSORT('蜶 ') THEN
V_RETURN := V_RETURN || 'S';
ELSIF V_COMPARE >= F_NLSSORT('侤 ') AND V_COMPARE <= F_NLSSORT('籜 ') THEN
V_RETURN := V_RETURN || 'T';
ELSIF V_COMPARE >= F_NLSSORT('屲 ') AND V_COMPARE <= F_NLSSORT('鶩 ') THEN
V_RETURN := V_RETURN || 'W';
ELSIF V_COMPARE >= F_NLSSORT('夕 ') AND V_COMPARE <= F_NLSSORT('鑂 ') THEN
V_RETURN := V_RETURN || 'X';
ELSIF V_COMPARE >= F_NLSSORT('丫 ') AND V_COMPARE <= F_NLSSORT('韻 ') THEN
V_RETURN := V_RETURN || 'Y';
ELSIF V_COMPARE >= F_NLSSORT('帀 ') AND V_COMPARE <= F_NLSSORT('咗 ') THEN
V_RETURN := V_RETURN || 'Z';
END IF;



RETURN V_RETURN;



END;

2、struts2 action 代码  在action里面写sql为了贪快。别在意。 

private String[] pyList=null;               //拼音数组
private String  pyStr =null;  //查询拼音字母

public String execute(){
        /*岗位类别按拼音首字母查询*/
String pyzm="A B C D E F G H I J K L M N O P Q R S T U V W X Y Z";
pyList=pyzm.split(" ");
String jobtypeSql ="select jobtypename,jobtypecode from stjobtype where rownum <=100 order by hots desc";
        String areaSql = "select * from starea start with areacode='4406' connect by parentcode =   prior areacode";
        try {
            if (!CommonUtil.isNullOrEmpty(pyStr)) {
                //1、调用f_trans_pinyin_capital_h oracle函数查询
                 jobtypeSql="select jobtypename,jobtypecode" +
                        " from stjobtype where f_trans_pinyin_capital_h(jobtypename)= '"+pyStr+"' order by hots desc";

            }
            jobtypeList=stjobtypeService.getStjobtypeListBySQL(jobtypeSql);
            stareaList=stareaService.getStareaListBySQL(areaSql);
            String condition ="state = '0'";

        } catch (DBException e) {
            e.printStackTrace();
            return "fail";
        }

        return "success";
    }

3、jsp里面代码 

<table class="table_border" cellpadding="1" cellspacing="0">
                <tr>
                    <td colspan="5" align="left">
                        <img src="<%=basePath%>/images/moveright.gif" align="middle">
                        <b style="padding-left: 8px; padding-top: 10px;">岗位类别查询</b>
                    </td>
                </tr>
                <tr>
                    <td colspan="5" align="left">
                    <a href="jobsearch.action">
                            <b style="color:blue">热门岗位类别</b>
                            </a>
                        /<b style="padding-left: 8px; padding-top: 10px;">岗位类别首字母查询</b>
                        <s:iterator value="pyList" status="st">
                            <a href="jobsearch.action?pyStr=<s:property value="pyList[#st.index]" />">
                            <b style="color:blue"><s:property value="pyList[#st.index]" /></b>
                            </a> |
                        </s:iterator>
                    </td>
                </tr>

                <s:iterator id="jobtype" value="#request.jobtypeList" status="st">
                    <s:if test="#st.index==0 || #st.index%5 ==0">
                        <tr>
                    </s:if>
                    <td>
                        <a
                            href="etjob!findEtjobList.action?jobtypecode=<s:property value='#jobtype.jobtypecode'/>">
                            <s:property value="#jobtype.jobtypename" /> </a>
                    </td>
                    <s:if test="#st.index==4 || #st.index%5 ==4">
                        </tr>
                    </s:if>
                </s:iterator>
            </table>

4、附两效果图: 
页面1：查询页面 
 
页面2：查询首拼为字母G的数据