sql server case syntax

Tags: basic syntax structure PL/SQL1. Branching structureIn PL/SQL, the IF keyword is used as the starting segment of the program for the point structure.There are several branching structures in general:1) If Condition then statement end if;2) If Condition then statementElse then statementEnd If;3) If Condition then statementelsif condition Then statement...Else then statementEnd If;The structure correspon

Tags: you odata error generated instance throw repr run currentIn the application of hive, the following error occurred when you had an "error" in your SQL syntax; Check the manual-corresponds to your MySQL server version for the right syntax-use-near ' OPTION Sql_select_limit=d Efault ' is caused by a mismatch between

Q: Why do dynamic SQL general report error messages in ASP? Prompt statement syntax error For: Sometimes write ASP with Conn.execute (SQL) query, UPDATE, insert Access database data, clearly correct statements are often displayed SQL statement errors, quite annoyed, special induction, can be appropriate for the field t

DDL-Data Definition Language (create, alter, drop, declare) DML-data manipulation language (select, delete, update, insert) DCL-Data Control Language (Grant, revoke, commit, rollback) First, we will briefly introduce the basic statements: 1. Description: Create a database Create Database database-name 2. Description: delete a database. Drop database dbname 3. Description: Back up SQL Server --- Create a dev

Tags: status char rest DEA comment img sha text ModularI. Overview of stored Proceduresstored procedures in SQL Server are code snippets written using T_sql. It is designed to easily query information from system tables, or to complete administrative tasks and other system administration tasks related to updating database tables. The T_SQL statement is a programming interface between a

.needlessly create SQL Server objects that is not necessary. The cost of using viewin terms of views, for every unnecessary view this is created SQL Server would insert rows into the following system C Atalog Tables:syscolumns, syscomments, sysdepends, sysobjects, sysprocedures, and sysprotects. If Uncontrolled view cr

Oracle -- SQL syntax Summary -- Statement block declare v_name varchar2 (30): = 'jack' -- defines the variable begin select v_name from dual; exception when others then dbms_output.put_line ('exception occurred '); end; -- if judge declare v_num1 number; v_num2 number; v_result varchar2 (10); begin if v_num1 is null or v_num2 is null then v_result: = 'undefined'; elsif v_num1> v_num2 then v_result: = 'num1

SQL Syntax | reference | reference Manual | The syntax reference DB2 provides the query language SQL (Structured query Language) of the related database and is a very colloquial, easy to learn and understandable syntax. This language is almost always required by every databa

identifiers. The parameters for each procedure are used only for the procedure itself, and the same parameter names can be used in other procedures. By default, parameters can only be substituted for constants and cannot be used in place of a table name, column name, or other database object name. For more information, see EXECUTE. Data_type The data type of the parameter. All data types, including text, ntext, and image, can be used as parameters for stored procedures. However, the cursor data

MySQL Prepare Syntax: PREPARE statement_name from Preparable_sql_statement; /* Definition */ EXECUTE Statement_name [USING @var_name [, @var_name] ...]; /* Execute PREPROCESSING statement * * {deallocate | Drop} PREPARE statement_name/* Delete definition * * *; The prepare statement is used to prepare a statement and specify the name Statement_name to be referenced later. Statement names are insensitive to case