https://www.runoob.com/mysql/mysql-functions.html CONCAT & AS https://www.runoob.com/?s=sql+concat https://www.runoob.com/sql/sql-alias.html MySQL 函数 CONCAT(s1,s2...sn)字符串 s1,s2 等多个字符串合并为一个字符串 https://www.runoob.com/mysql/mysql-functions.html MySQL 存储过程 http...
String Functions Date Functions Type Conversion Logical Functions Aggregate Functions Pass-Through Functions (RAWSQL) User Functions Table Calculation Functions Spatial Functions Predictive Modeling Functions Additional Functions FORMAT() Function Workarounds in Tableau All Functions (Categorical...
Databricks SQL Databricks Runtime 提取str中与regexp表达式匹配的、对应于regex组索引的所有字符串。 语法 regexp_extract_all(str, regexp [, idx] ) 参数 str:匹配的STRING表达式。 regexp:具有匹配模式的STRING表达式。 idx:大于或等于 0 的可选整数表达式,默认值为 1。
EF Core Power Tools 492K ErikEJ sqlcompact.dk Useful design-time DbContext and database features, added to the Visual Studio Solution Explorer context menu. When right-clicking on a C# project, the following context menu functions are available: Reverse Engineer - Generates POCO classes,...
redesign the schema. Having multiple values isn't a good idea. Better is to put those values in their own table. If it has to be inside that table for some reason using JSON might be a good alternative as JSON functions allow some better manipulation of such things over string functions....
Transact-SQL (T-SQL) Reference Date & time hierarchyid methods (database engine) Numeric String & binary Spatial geography & instances (geography Data Type) Spatial geometry & instances (geometry Data Type) Data types XML DBCC Functions
The PostgreSQL database is delivered with a set of crosstab table functions to pivot data (documentation). You can’t catch up on 20 years of SQL evolution in one day. Subscribe the newsletter via E-Mail, Bluesky or RSS to gradually catch up and to keep modern-sql.com on your radar...
SQL Server check if ( ROW_NUMBER() OVER(ORDER BY Id) = 1 ) first, it means ( Id = 1001 ) Then check if ( Id = 1002 ) In this order the output will be empty. So we have a paradox. This example shows why we cannot use Window Functions in WHERE clause. You can think more ...
SQL database in Microsoft Fabric Returns the union ofsys.sql_modulesandsys.system_sql_modules. The view returns a row for each natively compiled, scalar user-defined function. For more information, seeScalar User-Defined Functions for In-Memory OLTP. ...
Note: To list the procedure names in a package, use the ALL_PROCEDURES view. See Also: "DBA_ARGUMENTS" "USER_ARGUMENTS" "ALL_PLSQL_TYPES" "ALL_PLSQL_TYPE_ATTRS" "ALL_PLSQL_COLL_TYPES" "ALL_PROCEDURES" for information about the functions and procedures that are accessible to ...