當SQLNumParams傳回SQL_ERROR或SQL_SUCCESS_WITH_INFO時,呼叫具有 SQL_HANDLE_STMT HandleType 和StatementHandleHandle的HandleType呼叫 SQLGetDiagRec,即可取得相關聯的 SQLSTATE 值。 下表列出 SQLNumParams通常傳回的 SQLSTATE 值,並說明此函式內容中的每個值;表示法 “(DM)” 在驅動程式管理員傳回的 SQLSTATE...
BIN_TO_NUM converts a bit vector to its equivalent number. Each argument to this function represents a bit in the bit vector. This function takes as arguments any numeric datatype, or any nonnumeric datatype that can be implicitly converted to NUMBER. Each expr must evaluate to 0 or 1. ...
enum_field_types Item_func_numhybrid::default_data_type ( ) const inlineoverridevirtual Get the default data (output) type for the specific item. Important for some SQL functions that may deliver multiple result types, and is used to determine data type for function's parameters that ...
当SQLNumParams返回SQL_ERROR或SQL_SUCCESS_WITH_INFO时,可以通过使用 handleTypeof SQL_HANDLE_STMT 和StatementHandle句柄调用SQLGetDiagRec来获取关联的 SQLSTATE 值。 下表列出了 SQLNumParams通常返回的 SQLSTATE 值,并解释此函数上下文中的每个值;表示法“(DM)”位于驱动程序管理器返回的 SQLSTATE 的说明之前。
enum_query_type )const inlineoverridevirtual This method is used for to: to generate a view definition query (SELECT-statement); to generate a SQL-query for EXPLAIN EXTENDED; to generate a SQL-query to be shown in INFORMATION_SCHEMA;
2.1.544 Part 1 Section 17.18.42, ST_HpsMeasure (Measurement in Half-Points) 2.1.545 Part 1 Section 17.18.44, ST_Jc (Horizontal Alignment Type) 2.1.546 Part 1 Section 17.18.52, ST_MailMergeDataType (Mail Merge Data Source Type Values) 2.1.547 Part 1 Section 17.18.57, ST_Merge (Me...
返回分区的row_num()=1是一种在数据库中使用的查询语句,用于获取每个分区中的第一行数据。 在数据库中,分区是将表分割成更小、更可管理的部分的一种技术。通过将表分成多个分区,可以提高查询性能、简化数据维护和管理,并允许更有效地使用存储空间。
SecurityTaskType SecurityUserRole SecurityUserRoleCondition SecurityUtil SegmentedEntryState SegmentEnteredEventArgs SegmentValueChangedEventArgs SegregationOfDutiesResolution SegregationOfDutiesSeverity Sequence SessionStatus SessionType ShapeType SignDisplay Sizing SkipAOSValidationPermission SqlDataDictionary SqlDataDict...
REPLICA_TYPE: FULL 2 rows in set (0.003 sec) obclient [oceanbase]> ALTER RESOURCE POOL pool1 UNIT_COUNT = 1; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your OceanBase version for the right syntax to use near ‘UNIT_COUNT = 1’ ...
用Enumerated注解就可以。 @Enumerated(EnumType.STRING) private ResourceType type = ResourceType.menu; // 资源类型 hibernate 原创 每天在编程 2023-01-09 17:39:01 81阅读 mysqlNOT IN多个值mysql@num 首先,先说结论:这个SQL语句执行可以看做是原子操作,没有线程安全问题。使用代码演示一下:1.创建一个xu_...