jdbc:oracle:thin:@host:port:SID?useUnicode=true&characterEncoding=ZHS16GBK 1. 检查数据库字符集 确认数据库实际使用的字符集: SELECT * FROM nls_database_parameters WHERE parameter LIKE '%CHARACTERSET%'; 1. 预防措施 确保开发、测试和生产环境使用相同的字符集配置 在应用程序中统一使用 UTF-8 编码,并...
ORA-17033 Malformed SQL92 string at position 出现格式不正确的 SQL92 串。 ORA-17034 Non supported SQL92 token at position 出现不支持的 SQL92 标记。 ORA-17035 Character Set Not Supported !! 不支持的字符集 !! ORA-17036 exception in OracleNumber OracleNumber 中的异常。 ORA-17037 Fail to convert...
SQL*Plus prompts for this alias as the "Host String" parameter when you log in. Select the network protocol Select the appropriate protocols you would like to support. Most applications use TCP. Specify the host information to identify the database listener The host is the name or DNS alias...
Source_string指定源字符表达式;pattern指定规则表达式;replace_string指定用于替换的字符串;position指定起始搜索位置;occurtence指定替换出现的第n个字符串;match_parameter指定默认匹配操作的文本串。 其中replace_string,position,occurtence,match_parameter参数都是可选的。 9.2 REGEXP_SUBSTR REGEXP_SUBSTR(source_string...
Oracle 資料類型預設SQL Server 資料類型 Bfile varbinary(max) binary_double float[53] binary_float float[53] blob varbinary(max) char char char varying[*..*] varchar[*] char[*..*] char[*] character char character varying[*..*] varchar[*] character[*..*] char[*] CLOB...
Oracle 数据类型默认 SQL Server 数据类型 bfilevarbinary(max) binary_doublefloat[53] binary_floatfloat[53] blobvarbinary(max) charchar char varying[*..*]varchar[*] char[*..*]char[*] characterchar character varying[*..*]varchar[*] character[*..*]char[*] ...
Returns 1 because an empty substring is considered to be found at the first positionExplanation:This SQL query is designed to find the position of the first space character ' ' in the string 'THIS IS THE THING'. The INSTR function is utilized here, which searches for the specified ...
Use an asterisk (*) or percent sign (%) to perform a partial keyword or record search that matches any string of zero or more characters. You can also use a question mark (?) to perform a partial search that matches any single character. Additional Information: For more information about...
It is very important to note thatsetXXX(String, XXX)binds using the formal parameter name of the called stored procedure.setXXXAtName(String, XXX)binds using the name of the Oracle style (:foo) parameter in the SQL string being executed. These are very different and can give very different...
SQL> select count(*) from test.t11; COUNT(*) --- 999 SQL> select * from test.t1 minus select * from test.t11; no rows selected 实时同步并检查 源表T1进行插入、更新和删除操作 insert into test.t1 select test.t1_seq.nextval,dbms_random.string('A',32),dbms_random.string('A',128),...