计算机编程语言及互联网运维技术的学习难点与技术资料查询网站-语言吧

js对url进行编码和解码（三种方式区别），Javascript语言用于编码的函数，一共有三个，最古老的一个就是escape()。虽然这个函数现在已经不提倡使用了，但是由于历史原因，很多地方还在使用它，所以有必要先从它讲起。...
RBAC（Role-Based Access Control，基于角色的访问控制），就是用户通过角色与权限进行关联。简单地说，一个用户拥有若干角色，每一个角色拥有若干权限。这样，就构造成“用户-角色-权限”的授权模型。在这种模型中，用户与角色之间，角色与权限之间，一般者是多对多的关系。...
1. 当有一个不吻合页面元素的尺寸时有时候图片并不都是这么完美的适合你所需要的场景，比如美工给了一套比较大的Css Sprite：实际上你并不需要这么大的图标，比如你需要图标的地方大概是55px * 50px：892运行结果：可以看出来此时由于图标远比盒子大，所以只显示出了一个角，正所谓小荷才露尖尖...
如果你的数据库应用系统中，存在有大量表，视图，索引，触发器，函数，存储过程，sql语句等等，又性能低下，而苦逼的你又要对其优化，那么你该怎么办？哥教你，首先你要知道问题出在哪里？如果想知道问题出在哪里，并且找到他，咱们可以借助本文中要讲述的性能检测工具--sql server profiler（处在...
IIS 7.0 部署MVC，开发的MVC 3.0 项目，在部署服务上还是与需要花一点功夫，这里把遇到的问题罗列出来。...
菜单是页面必不可少的元素，我们希望它是通用的，所以在结构上，它的组成极其灵活。而事实上，在基础菜单还没有正式推出之前，垂直导航（layui-nav-tree）曾顶替了它的角色，尤其是在管理系统中发挥了举足轻重的作用。...
IIS7.5 设置域名301重定向或URL跳转转发的设置方法...
文章主要介绍了C#实现Array添加扩展,对C#初学者有不错的参考价值,需要的朋友可以参考下...
ASP.NET/ASP.NET MVC 百度SEO 链接自动提交熊掌号自动提交实现...
关于跨域,以及跨域的几种方式...

MySQL Error number: MY-011460; Symbol: ER_GRP_RPL_UPDATE_GRPGTID_EXECUTED_ERROR; SQLSTATE: HY000 报错

Error number: MY-011460; Symbol: ER_GRP_RPL_UPDATE_GRPGTID_EXECUTED_ERROR; SQLSTATE: HY000Message: Error updating group_gtid_executed GI......

阅读:1次

ORA-14008: missing THAN keyword ORACLE 报错

ORA-14008: missing THAN keywordCause: keyword THAN missingAction: supply missing keyword......

阅读:2次

MySQL Error number: MY-010293; Symbol: ER_X509_NEEDS_RSA_PRIVKEY; SQLSTATE: HY000 报错

Error number: MY-010293; Symbol: ER_X509_NEEDS_RSA_PRIVKEY; SQLSTATE: HY000Message: Could not generate RSA private key required for X.50......

阅读:0次

ORA-56932: “string”.”string” does not exist ORACLE 报错

ORA-56932: 'string'.'string' does not existCause: Specified table name was invalid.Action: Check the existence of the specified table na......

阅读:1次

ORA-12408: unsupported operation: string ORACLE 报错

ORA-12408: unsupported operation: stringCause: The specified policy does not support the requested operation.Action: Consult the policy ......

阅读:0次

ORA-26060: Can not convert type identifier for column string ORACLE 报错

ORA-26060: Can not convert type identifier for column stringCause: The direct path API encountered a type identifier for a column that c......

阅读:1次

ORA-19004: Duplicate XMLType OBJECT RELATIONAL storage option ORACLE 报错

ORA-19004: Duplicate XMLType OBJECT RELATIONAL storage optionCause: A duplicate storage option for the XMLType column was specifiedActio......

阅读:1次

ORA-38621: Decision Tree maximum depth setting not between [2, 20] ORACLE 报错

ORA-38621: Decision Tree maximum depth setting not between [2, 20]Cause: The user specified a max tree depth not in the range of [2, 20]......

阅读:1次

ORA-42017: interim table of an AQ table should not be an AQ table ORACLE 报错

ORA-42017: interim table of an AQ table should not be an AQ tableCause: An attempt was made to create an AQ table as an interim table of......

阅读:0次

ORA-14509: specified VALIDATE INTO table form incorrect ORACLE 报错

ORA-14509: specified VALIDATE INTO table form incorrectCause: The specified table does not have the proper field definitions.Action: Spe......

阅读:1次

ORA-22817: subquery not allowed in the default clause ORACLE 报错

ORA-22817: subquery not allowed in the default clauseCause: An attempt was made to use a subquery in the column default clause expressio......

阅读:1次

MySQL Error number: MY-012733; Symbol: ER_IB_MSG_908; SQLSTATE: HY000 报错

Error number: MY-012733; Symbol: ER_IB_MSG_908; SQLSTATE: HY000Message: %s错误说明：MySQL错误号 MY-012733 ，符号为ER_IB_MSG_908，状态码为HY000，该错误是 InnoD......

阅读:1次

ORA-12029: LOB columns may not be used as filter columns ORACLE 报错

ORA-12029: LOB columns may not be used as filter columnsCause: An attempt was made to use LOB columns as filter columns.Action: Remove L......

阅读:1次

ORA-38480: creation of system trigger EXPFIL_ALTEREXPTAB_MAINT failed. ORACLE 报错

ORA-38480: creation of system trigger EXPFIL_ALTEREXPTAB_MAINT failed.Cause: The creation of system trigger EXPFIL_ALTEREXPTAB_MAINT fai......

阅读:1次

ORA-31452: invalid value string for parameter, expecting: Y or N ORACLE 报错

ORA-31452: invalid value string for parameter, expecting: Y or NCause: The specified value was not Y or N.Action: Specify Y or N for the......

阅读:0次

ORA-39700: database must be opened with UPGRADE option ORACLE 报错

ORA-39700: database must be opened with UPGRADE optionCause: A normal database open was attempted, but the database has not been upgrade......

阅读:0次

MySQL Error number: MY-010571; Symbol: ER_RPL_SLAVE_CANT_INITIALIZE_SLAVE_WORKER; SQLSTATE: HY000 报

Error number: MY-010571; Symbol: ER_RPL_SLAVE_CANT_INITIALIZE_SLAVE_WORKER; SQLSTATE: HY000Message: Failed during slave worker initializ......

阅读:1次

ORA-64105: Cannot create domain index on XMLIndex internal tables. ORACLE 报错

ORA-64105: Cannot create domain index on XMLIndex internal tables.Cause: An attempt was made to create a domain index on an internal tab......

阅读:2次

ORA-12983: cannot drop all columns in a table ORACLE 报错

ORA-12983: cannot drop all columns in a tableCause: An attempt was made to drop all columns in a table.Action: Make sure at least one co......

阅读:2次

ORA-25963: join index must be created on tables ORACLE 报错

ORA-25963: join index must be created on tablesCause: An attempt to create a join index was made, which failed because the from clause c......

阅读:1次

ORA-39270: Cannot alter a LOB column to another data type. ORACLE 报错

ORA-39270: Cannot alter a LOB column to another data type.Cause: DBMS_METADATA_DIFF was comparing two table columns, the first of type C......

阅读:2次

MySQL Error number: MY-011506; Symbol: ER_GRP_RPL_SESSION_OPEN_FAILED; SQLSTATE: HY000 报错

Error number: MY-011506; Symbol: ER_GRP_RPL_SESSION_OPEN_FAILED; SQLSTATE: HY000Message: Unable to open session to (re)set read only mod......

阅读:1次

MySQL Error number: 4083; Symbol: ER_ALTER_OPERATION_NOT_SUPPORTED_REASON_COLUMN_TYPE_INSTANT; SQLST

Error number: 4083; Symbol: ER_ALTER_OPERATION_NOT_SUPPORTED_REASON_COLUMN_TYPE_INSTANT; SQLSTATE: HY000Message: Need to rebuild the tab......

阅读:1次

MySQL Error number: MY-011180; Symbol: ER_SEMISYNC_SLAVE_REPLY_WITH_BINLOG_INFO; SQLSTATE: HY000 报错

Error number: MY-011180; Symbol: ER_SEMISYNC_SLAVE_REPLY_WITH_BINLOG_INFO; SQLSTATE: HY000Message: %s: reply (%s, %lu).本错误ER_SEMISYNC_SL......

阅读:0次

ORA-26849: Split a nonsplittable string Capture process “string” in job “string

ORA-26849: Split a nonsplittable string Capture process 'string' in job 'string'Cause: The job tried to split a GoldenGate, XStream or S......

阅读:1次

ORA-41706: a condition referenced in rule conditions may not be deleted ORACLE 报错

ORA-41706: a condition referenced in rule conditions may not be deletedCause: An attempt was made to delete a condition when one or more......

阅读:2次

MySQL Error number: MY-013731; Symbol: ER_GRP_RPL_MEMBER_ACTION_TRIGGERED; SQLSTATE: HY000 报错

Error number: MY-013731; Symbol: ER_GRP_RPL_MEMBER_ACTION_TRIGGERED; SQLSTATE: HY000Message: The member action '%s' for event '%s' with ......

阅读:1次

ORA-15451: missing or invalid volume size specifier ORACLE 报错

ORA-15451: missing or invalid volume size specifierCause: The volume size specified was invalid.Action: Specify a valid volume size.ORA-......

阅读:1次

MySQL Error number: MY-013877; Symbol: ER_IB_MSG_LOG_UPGRADE_FLUSH_FAILED__UNEXPECTED; SQLSTATE: HY0

Error number: MY-013877; Symbol: ER_IB_MSG_LOG_UPGRADE_FLUSH_FAILED__UNEXPECTED; SQLSTATE: HY000Message: Cannot upgrade format (v%lu) of......

阅读:1次

ORA-12683: encryption/crypto-checksumming: no Diffie-Hellman seed ORACLE 报错

ORA-12683: encryption/crypto-checksumming: no Diffie-Hellman seedCause: The 'sqlnet.crypto_seed' parameter is missing from the SQLNET.OR......

阅读:2次

PostgreSQL 08001: sqlclient_unable_to_establish_sqlconnection 报错

08001: sqlclient_unable_to_establish_sqlconnection【完成后更新】ERROR 08001: SQLCLIENT_UNABLE_TO_ESTABLISH_SQLCONNECTION错误说明：Error 08001指的是Post......

阅读:1次

MySQL Error number: 3690; Symbol: ER_REGEXP_UNIMPLEMENTED; SQLSTATE: HY000 报错

Error number: 3690; Symbol: ER_REGEXP_UNIMPLEMENTED; SQLSTATE: HY000Message: The regular expression contains a feature that is not imple......

阅读:1次

ORA-23477: unable to alter propagation mode for object group “string”.”string̶

ORA-23477: unable to alter propagation mode for object group 'string'.'string'Cause: The propagation method of a materialized view objec......

阅读:1次

MySQL Error number: MY-010902; Symbol: ER_THREAD_PRIORITY_IGNORED; SQLSTATE: HY000 报错

Error number: MY-010902; Symbol: ER_THREAD_PRIORITY_IGNORED; SQLSTATE: HY000Message: Thread priority attribute setting in Resource Group......

阅读:1次

ORA-12479: file label string must equal DBHIGH string ORACLE 报错

ORA-12479: file label string must equal DBHIGH stringCause: A database file had an OS label that did not match DBHIGH. Either DBHIGH was......

阅读:1次

ORA-31694: master table string failed to load/unload ORACLE 报错

ORA-31694: master table string failed to load/unloadCause: Master table failed to load or unload.Action: Check load/unload error, correc......

阅读:1次

MySQL Error number: MY-010806; Symbol: ER_EVENT_UNABLE_TO_DROP_EVENT; SQLSTATE: HY000 报错

Error number: MY-010806; Symbol: ER_EVENT_UNABLE_TO_DROP_EVENT; SQLSTATE: HY000Message: Unable to drop event %s from schema %s错误说明：MY-01......

阅读:0次

ORA-55320: model string drop attempt failed: string ORACLE 报错

ORA-55320: model string drop attempt failed: stringCause: The attempt to drop the specified model did not succeed.Action: This may be an......

阅读:1次

ORA-19551: device is busy, device type: string, device name: string ORACLE 报错

ORA-19551: device is busy, device type: string, device name: stringCause: The indicated device could not be allocated because it is allo......

阅读:1次

ORA-07740: slemop: incorrect handle size (programming error) ORACLE 报错

ORA-07740: slemop: incorrect handle size (programming error)Cause: structures used for reading error message files do not matchAction: t......

阅读:0次

ORA-38705: Expected block size string does not match string in log header. ORACLE 报错

ORA-38705: Expected block size string does not match string in log header.Cause: When the flashback log file header was read, the block ......

阅读:1次

ORA-23342: invalid parameter column string ORACLE 报错

ORA-23342: invalid parameter column stringCause: The parameter column name is null or misspelled, the invocation database is not a maste......

阅读:0次

ORA-18173: FTST0014 score computation restriction ORACLE 报错

ORA-18173: FTST0014 score computation restrictionCause: An implementation may constrain the form of the expression used to compute score......

阅读:1次

ORA-22982: cannot create sub-view under this view ORACLE 报错

ORA-22982: cannot create sub-view under this viewCause: The view derives its OID from a table/view having primary key based OID and sub-......

阅读:2次

ORA-19291: XPST0081 – specified QName cannot be expanded into a namespace URI ORACLE 报错

ORA-19291: XPST0081 - specified QName cannot be expanded into a namespace URICause: The namespace prefix of the QName could not be expan......

阅读:2次

ORA-26733: timed-out waiting for file group lock ORACLE 报错

ORA-26733: timed-out waiting for file group lockCause: The procedure waited too long while getting a lock to perform a file group reposi......

阅读:1次

MySQL Error number: MY-012784; Symbol: ER_IB_MSG_959; SQLSTATE: HY000 报错

Error number: MY-012784; Symbol: ER_IB_MSG_959; SQLSTATE: HY000Message: %s错误说明：ER_IB_MSG_959 错误是在 InnoDB 存储引擎内MySQL服务器发生的一个警告，意思是由于表被外部锁......

阅读:0次

MySQL Error number: MY-012456; Symbol: ER_IB_MSG_631; SQLSTATE: HY000 报错

Error number: MY-012456; Symbol: ER_IB_MSG_631; SQLSTATE: HY000Message: %s错误说明ER_IB_MSG_631，是一个MySQL官方的错误代码，表示无法创建必需的FK索引上所需的字段，其MY-0124......

阅读:0次

ORA-55504: Transaction conflicts in NOCASCADE mode ORACLE 报错

ORA-55504: Transaction conflicts in NOCASCADE modeCause: Transactions other than the ones specified conflicts with the specified transac......

阅读:1次

MySQL Error number: MY-011123; Symbol: ER_MECAB_PARSE_FAILED; SQLSTATE: HY000 报错

Error number: MY-011123; Symbol: ER_MECAB_PARSE_FAILED; SQLSTATE: HY000Message: Mecab: parse() failed: %s.错误说明：MySQL 错误代码 MY-011123 和 SQ......

阅读:1次

友情链接联系QQ:664627440

最新更新技术资料