Squeryl is a strongly typed, declarative and SQL like DSL for manipulating database objects from within the Scala language.
A JDBC tutorial for executing basic SQL statements like INSERT, SELECT,UPDATE and DELETE.Oracle INSERT, UPDATE, DELETE, MERGE, Multi INSERT Statements. Oracle INSERT, UPDATE, DELETE, MERGE, Multi INSERT Statements. Data Manipulation Language (DML) Statements Data manipulation language (DML) statements query and manipulate data in. These statements do not implicitly commit the current. The following are the DML statements available in Oracle. Insert into emp values (1. Sami’,’G. Manager’,’8- aug- 1. If you want to add a new row by supplying values for some columns not all the. The Job and Hiredate columns will be. Insert into emp (empno,ename,sal) values (1. Ashi’,5. 00. 0); Suppose you want to add rows from one table to another i. Then you can give. Insert into emp (empno, ename, sal)select empno, ename, sal from old. For example to raise the salary by Rs. You can. give the following statement. In the above statement if we did not give the where condition then all. Rs. That’s why always specify proper. WHERE condition if don’t want to update all employees. For example We want to change the name of employee no 1. Then the statement will be. Mohd Sami’, sal=sal+(sal*1. Now we want to raise the salary of all employees by 5%. Now to change the names of all employees to uppercase. Suppose We have a student table with the following structure. Now to compute total which is sum of Maths,Phy and Chem and average. Suppose we want to delete all employees whose salary is above 2. Then give. the following DELETE statement. The following statement has the same effect as the preceding example, but. DELETE FROM (SELECT * FROM emp)WHERE sal > 2. To delete all rows from emp table. The decision whether to update or insert into. ON clause. It is a. Oracle Ver. It is also known as UPSERT i. Insert, Update, and Delete Destination table with SSISSource table used in this example is Department table from. Adventure. Works. Solution: 1- Create an OLE DB Source for source table, use select command. Departmentorderby. Department. IDNote to the ORDER BY Clause in this statement. That part is. required because Merge Join transform require sorted sources as input. Name. this component as Source Table. Create another OLE DB Source for destination table. In this. example source and destination has same table name but are in different. So we use same script as step 1 for this one as well. Name this. component as Destination Table. Right click on OLE DB Source, choose Show Advanced Editor. Select the. OLE DB Source Output, and change the Is. Sorted Property to true. Expand OLE DB Source output, and then under Output Columns. Department. ID. Then change the Sort. Key. Position to 1. Apply steps 3 and 4 for both OLE DB Sources (Source Table. Destination Table)6- Drag and drop a Merge Join transformation, connect two OLE. DB Sources to this. Set Source Table as left and Destination Table as right. Go to Merge Join transformation editor, Department. ID will be. used as joining column (selected based on sort properties of previous components). Also rename. default output as existing records and screenshot below shows. Expressions used in this sample are very easy and simply. For example expression below: ! ISNULL(Source. Department. ID) & &. ISNULL(Destination. Department. ID)Used to find new records. And literally means records that. Source. Department. ID but not Destination. Department. ID. And this script used to find deleted records: ISNULL(Source. Department. ID) & &. ISNULL(Destination. Department. ID)9- Add an OLE DB Destination and connect NEW RECORDS output to. Set configuration for destination table and use columns with Source prefix. OLE DB destination. This destination component. Add an OLE DB Command and connect Removed RECORDS output to. Create a connection to destination database, and write script below to. ID: deletefromdbo. Department. ID=? In the column mappings, map Destination. Department. ID to the. Add another Conditional Split and connect Existing Records. We use this component to find only records that had a change in. So we compare equivalent source and destination columns to. This is the expression used to find match data in screenshot. Source. Name == Destination. Name) & & (Source. Group. Name. == Destination. Group. Name) & & (Source. Modified. Date ==. Destinaiton. Modified. Date)1. 2- Create a stored procedure in destination database to update. Department table. CREATEPROCEDUREdbo. Update. Department@Department. IDsmallint,@Namenvarchar(5. Group. Namenvarchar(5. Modified. Datedatetime. ASBEGINSETNOCOUNTON; UPDATE. Connect it to destination database, and write below. Component Properties tab’s SQLCommand property. Update. Department?,?,?,? Map input columns (with source prefixes) to parameters in. Run the package and you will see changes will be applied to. Testing the solution: Here is data rows from source table. And data rows from destination table. Yellow records are new records. Pink records are updated records. Green record is deleted record (in destination table)After running the package you will see records will be. And destination table will pick changes.
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