语法:REPLACE(char, search_string,replacement_string) 用法:将char中的字符串search_string全部转换为字符串replacement_string。 举例:SQL> select REPLACE('fgsgswsgs', 'fk' ,'j') 返回值 from dual; 返回值 --- fgsgswsgs SQL> select REPLACE('fgsgswsgs', 'sg' ,'eeerrrttt') 返回值 from dual;...
就可以实现非贪婪或最小匹配*/selectregexp_replace(json,'(\{"advantage\S*?unitName":")|(","unitRemark\S*?\})|\[|\]','')fromtb/*结果:XX公司,YY公司*/ 使用例子4(替换字符串中的日期): select'测试 (2022-09-01)', regexp_replace('测试 (2022-09-01)','(\d{4}-\d{2}-\d{2}...
CREATE OR REPLACE FUNCTION GET_SUM_MAJOR (INMAJOR VARCHAR2) RETURN NUMBER AS SUM_PAID NUMBER; BEGIN SELECT SUM(TUITION_PAID) INTO SUM_PAID FROM STUDENT_ADMIN.STUDENT WHERE MAJOR = INMAJOR; RETURN(SUM_PAID); END GET_SUM_MAJOR; No CREATE FUNCTION syntax is required; use CREATE PROCEDURE syn...
在Oracle SQL中,REGEX_REPLACE函数用于在字符串中使用正则表达式进行替换操作。它可以将匹配正则表达式的部分替换为指定的字符串。 然而,如果在使用REGEX_REPLACE函数时未正确替换字符串,可能有以下几个原因: 正则表达式不正确:在使用REGEX_REPLACE函数时,需要确保提供的正则表达式是正确的。正则表达式语法非常丰富,可以匹配...
oracle 无法使用SQL中的replace函数替换子字符串我在一列中有一个字符串，并希望从下面的列中替换ROLE_...
报错信息在 p17_db_log 中,报错信息:-5001;ORA-00900:You have an errorinyourSQLsyntax;check the manual that corresponds to your OceanBase versionforthe right syntax to use near') when matched then update set a.REMINDER_COUNT=b.REMINDER_COUNT,a.EXT_CUST_NO1'at line1 ...
Syntax:REPLACE(char, search_string [, replacement_string ] ) Parameters:NameDescriptionData Type char The target string to be searched and modified. CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB search_string The substring to find within the char. CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB,...
1.3 Starting and Leaving SQLcl Use the following commands to log in to and out of SQLcl. SQLCL [[option] [logon | / NOLOG] [start]] where option has the following syntax: -H[ELP] | -V[ERSION] | [ [-C[OMPATIBILITY] x.y[.z]]] [-L[OGON]] [-NOLOGINTIME] [-R[ESTRICT...
UTL_FILE and DBMS_WORKLOAD_REPOSITORY packages.-- Call Syntax : Create the directory with the appropriate path.-- Adjust the start and end snapshots as required.-- @generate_multiple_awr_reports.sql-- Last Modified: 02/08/2007-- ---CREATE OR REPLACE DIRECTORY awr_reports_dir AS '/tmp/'...
通过CONNECT BY实现递归SQL是Oracle特有的方言之一,目前openGauss无法兼容CONNECT BY关键字,需要通过使用递归CTE查询替代。 postgres=# SELECT *, LEVEL FROM te1 CONNECT BY PRIOR id = pid; ERROR: syntax error at or near "BY" LINE 3: CONNECT BY PRIOR id = pid; postgres=# WITH RECURSIVE t(n) AS...