sb.Append(b> 15 ?Convert.ToString(b, 16) :'0'+Convert.ToString(b, 16)); } returnsb.ToString(); } 调用此函数实现byte[]到string的转换,因为数据表中存储值为大写,所以利用ToUpper()方法转换下得到。 APPID=Byte2String(arrAPPID).ToUpper(); (3)根据获取的string类型值,进行进一步的操作,例如: O...
NVARCHAR2 String RAW Byte[] ROWID String timestamp Datetime TIMESTAMP WITH LOCAL TIME ZONE String TIMESTAMP WITH TIME ZONE String 不帶正負號的整數 數字 VARCHAR2 String XML String 注意 不支援 INTERVAL YEAR TO MONTH 和 INTERVAL DAY TO SECOND 資料類型...
SELECT CONVERT('? ¨º ¨ª ? ? A B C DE ', 'US7ASCII', 'WE8ISO8859P1') a1 FROM DUAL; 7、DECOMPOSE(ch) 8、HEXTORAW(ch) 转换十六进制字符串为RAW类型 SELECT HEXTORAW('4041424344') a1 FROM DUAL; SELECT UTL_RAW.CAST_TO_VARCHAR2(HEXTORAW('4041424344')) a1 FROM DUAL; 9、NUMTOD...
v_string VARCHAR2(4000); v_raw RAW(32767); BEGIN v_raw := '5468697320697320612073616D706C6520434C4F422E'; v_blob := UTL_RAW.CAST_TO_RAW(v_raw); v_string := DBMS_LOB.SUBSTR(DBMS_LOB.CONVERTTOCLOB(v_blob), DBMS_LOB.GETLENGTH(v_blob), 1); DBMS_OUTPUT.PUT_LINE('BLOB as string:...
Performance hint. java.lang.String stringValue() Convert to a String representation of the datum object java.lang.Object toJdbc() Oracle extension.Methods inherited from class oracle.sql.DatumWithConnection assertNotNull, assertNotNull, getConnection, getJavaSqlConnection, getOracleConnectionMethods...
包含字符数据的 OracleCLOB数据类型,根据服务器的默认字符集,其最大大小为 4 GB。 此数据类型映射到String。 NClob 包含字符数据的 OracleNCLOB数据类型,根据服务器的区域字符集,其最大大小为 4G 字节。 此数据类型映射到String。 OracleLob与OracleBFile的区别在于前者的数据存储在服务器上而不是存储在操作系统的物...
select to_char(last_day(sysdate),'yyyy-mm-dd') from dual; 7、NEXT_DAY(r,c)函数:返回指定R日期的后一周的与r日期字符(c:表示星期几,1:周天,2:周1)对应的日期。 select to_char(next_day(sysdate,1),'yyyy-mm-dd') from dual; 8、EXTRACT(time)函数:返回指定time时间当中的年、月、日、分等...
Creates a new RAW from an Object in the manner of the RAW(Object) constructor in versions of Oracle JDBC 9.2 and earlier. java.lang.StringstringValue() Convert this data object into a String. java.lang.ObjecttoJdbc() Convert this data object into its default Java object type. ...
OracleConnection conn = new OracleConnection(CONNECTSTRING); conn.Open(); OracleCommand cmd = conn.CreateCommand(); cmd.CommandText = "INSERT INTO MyAnyTable (Id, AnydataCol) VALUES (1, SYS.ANYDATA.CONVERTVARCHAR2('TEST STRING'))";
If a column of a result set is of datatype LONG or LONG RAW (that is, the streaming types), JDBC changes the statement's row prefetch setting to 1, even if you never actually read a value of either of those types. If you use the form of the DriverManager class getConnection() ...