select count into

--oracle:declare n_count int;begin Select Count (*) into N_count from from m_test where entitylsh = 1; Dbms_output.put_line (N_count); End --sql server:declare @is_exist_alert3 int; Select @is_exist_alert3 =count (*) from m_test where Entitylsh =

Use kettle to call the stored procedure, passing in parameter outgoing parameters.The contents of the stored procedure are as follows, mainly the return value of passing in a table name and a numeric type.You can then get the number of rows in the

1. FunctionsCreate or Replace function Gettablecount (table_name VARCHAR2) return number asBeginDECLARE sql_query VARCHAR2 (300);T_count number;Begin 　　　　　　Sql_query:= ' SELECT COUNT (*) from ' | |   table_name; There is a space behind the

First, build table 1, ID: Each table to set a meaningless ID, preferably an int (unsigned), much better than varchar performance, set to self-increment better. Exceptions to foreign key conditions. 2. Field type (1) try not to use NULL, especially

Spanning tree coding requirements with Oracle stored procedures Field Describe Note Id Primary key, 32-bit UUID Type_code Coding such as: 1-01-003 parent_id

Speaking of the Mybatics framework, Java development engineers around them are largely familiar. Mybatics is an Apache open source project, formerly known as IBATICS,2010, the project was migrated by the Apache Software Foundation to Google

One: Parameter type1.IN can only read parameters and be valid inside functions, not persisted to external variables2.OUT cannot read parameters and can be modified inside a function and saved to an external variable3.INOUT can be read and

First I defined a student table in the MySQL test database:CREATE TABLE Student4 (ID int PRIMARY KEY,Sanme Char (5)）;Insert several data for testing:Inset into student values (1, ' Mayi ');Inset into student values (2, ' Mayi ');Inset into student

CREATE PROCEDURE Commonpageproc (In P_tablename VARCHAR (1024),In P_fields VARCHAR (1024),In P_pagesize INT,In P_pageindex INT,In P_orderfield VARCHAR (128),In P_sqlwhere VARCHAR (1024),Out P_totalrecord INT)Not deterministicSQL SECURITY

Basic grammar on their own Baidu bar, although I Baidu, but I basically did not see, or more knock code good AH1, delimiterChange the command terminator (because the default command Terminator-semicolon (;)) is often used in procedureSo when

Job is used in a lot of practical applications. Regular users perform certain functions, stored procedures, and so on. Here's a look at how to create and start a job.For example, a stored procedure is executed using a job schedule.Stored Procedure

1. Query this node and all nodes below this node:SELECT * FROM table1 C start with c.p_id= ' 0000000 ' connect by prior c.id=c.p_id and c.use_yn= ' Y ' ORDER by ID;2. Querying all hierarchical relationships in a nodeSELECTRPAD( ‘ ‘, 2*(LEVEL-1), ‘-‘)

I. syntax for stored procedures and functionsCREATE PROCEDURE sp_name ([proc_parameter[,...]]) [Characteristic ...] Routine_body CREATE FUNCTION sp_name ([func_parameter[,...]) RETURNS type [characteristic ...] routine_body

MySQL Create stored procedureIn MySQL, the basic form of creating stored procedures is as follows:CREATE PROCEDURE sp_name ([proc_parameter[,...]]) Where the Sp_name parameter is the name of the stored procedure, Proc_parameter represents

Transferred from: http://www.cnblogs.com/exmyth/p/3303470.html14.1.1 Creating a stored procedureIn MySQL, the basic form of creating stored procedures is as follows: CREATE PROCEDURE sp_name ([proc_parameter[,...]]) [Characteristic ...]

SQL stored procedure Stored procedure creation syntax:create or replace procedure 存储过程名（param1 in type，param2 out type） as 变量1 类型（值范围）; --vs_msg VARCHAR2(4000); 变量2 类型（值范围）;Begin Select count(*) into 变量1 from 表A where列名=param1； If

2014-06-26 BaoxinjianI. Summary When different system data are exchanged, there can be many ways, such as Mq,dblinkWhen it comes to some projects with more secure information, many companies use Unix shells to throw files directly.When using a

In MySQL, the basic form of creating stored procedures is as follows: CREATE PROCEDURE sp_name ([proc_parameter[,...]]) [Characteristic ...] Routine_body Where the Sp_name parameter is the name of the stored procedure,

Demand:Add a field to a table in a database (if the field already exists, do not do so; if the field does not exist, the new one)Baidu has been n long, did not meet the requirements of the example, only the reference to add their own pondering,

The first time the bug is a lot of places, so pay attention to a lot, it took me three days to do all the bugs, I will pay attention to the points are listed, there may be a place to fall, but also please correct, mutual discussion.First on the