This example will convert the data in BLOB_column to the type varchar2. [code language="sql"] select UTL_RAW.CAST_TO_VARCHAR2(DBMS_LOB.SUBSTR(BLOB_column, 3200,1)) from tablename; [/code] The function substr takes 3 parameters 1. The raw blob o clob data
Blob stands for binary large object byte[] bytesArr= (byte[])rows[i]["congest"]; bk.Congest= Encoding.UTF8.GetString(bytesArr) publicstaticDataSet GetSQLDataset(stringselectSQL) { DataSet ds=newDataSet();using(MySqlDataAdapter da =newMySqlDataAdapter(selectSQL, conn)) { da.Fill(ds); }...
可以看出无引号输出变成了<<BLOB>>二进制文件,我们的目标是 无引号的字符串类型; 使用Convert()函数配置编码解决 SELECT eci.variable_value ->> '$."乙方"', eci.variable_value -> '$."乙方"', Convert(eci.variable_value ->> '$."乙方"' using utf8) FROM ess_contract_info eci WHERE `contract...
· 错误:1170 SQLSTATE: 42000 (ER_BLOB_KEY_WITHOUT_LENGTH) 消息:在未指定键长度的键说明中使用了BLOB/TEXT列'%s'。 · 错误:1171 SQLSTATE: 42000 (ER_PRIMARY_CANT_HAVE_NULL) 消息:PRIMARY KEY的所有部分必须是NOT NULL,如果需要为NULL的关键字,请使用UNIQUE取而代之。 · 错误:1172 SQLSTATE: 42000...
(*) FROM AdventureWorks2022.Production.Location); SET @device = 'https://<mystorageaccountname>.blob.core.windows.net/<mystorageaccountcontainername>/tutorial-' + CONVERT (varchar(10),@numrows) + '-' + FORMAT(GETDATE(), 'yyyyMMddHHmmss') + '.bak'; BACKUP LOG AdventureWorks2022 TO...
(*) FROM AdventureWorks2022.Production.Location); SET @device = 'https://<mystorageaccountname>.blob.core.windows.net/<mystorageaccountcontainername>/tutorial-' + CONVERT (varchar(10),@numrows) + '-' + FORMAT(GETDATE(), 'yyyyMMddHHmmss') + '.bak'; BACKUP LOG AdventureWorks2022 TO URL ...
gsql:Oracle_Functions.sql:1035: NOTICE: | function | sys_guid() | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | aggregate | wm_concat(text) | 1.0 | internal | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | nvl2(anyelem...
t:'||p_cset_t);RAISE fnd_api.g_exc_unexpected_error;ENDIF;dbms_lob.converttoblob(dest_lob=>x_blob,src_clob=>p_clob,amount=>dbms_lob.lobmaxsize,dest_offset=>l_dst_offset,src_offset=>l_src_offset,blob_csid=>l_cset_id_t,lang_context=>l_lang,warning=>l_warning);ENDclob2blob;...
t:'||p_cset_t);RAISE fnd_api.g_exc_unexpected_error;ENDIF;dbms_lob.converttoblob(dest_lob=>x_blob,src_clob=>p_clob,amount=>dbms_lob.lobmaxsize,dest_offset=>l_dst_offset,src_offset=>l_src_offset,blob_csid=>l_cset_id_t,lang_context=>l_lang,warning=>l_warning);ENDclob2blob;...
在DM 中可以通过 to_char 对 SqlServer 中的 convert 函数进行改写. 例如: sqlserver 中 SQL: select convert(char(19),GETDATE(),120); 120 的意思是时间格式化为 24 小时时间格式 在达梦数据库中改写: select to_char(CONVERT(char(19),getdate()),'yyyy-mm-dd hh24:MM:ss'); sqlserver 迁移到...