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SQL 2021-09-17 14:15:03
mysql check if not null
SELECT * FROM table WHERE YourColumn IS NOT NULL; Add solution -
SQL 2021-09-17 07:40:02
HOW TO RUN QUERRY ON MICROSOFT SQLSERVER
USE [TutorialDB] -- Create a new table called 'Customers' in schema 'dbo' -- Drop the table if it already exists IF OBJECT_ID('dbo.Customers', 'U') IS NOT NULL DROP TABLE dbo.Customers GO -- Create the table in the specified schema CREATE TABLE dbo.Custom... Add solution -
SQL 2021-09-16 17:27:02
sql script to remove default from column
DECLARE @tableName VARCHAR(MAX) = '<MYTABLENAME>' DECLARE @columnName VARCHAR(MAX) = '<MYCOLUMNAME>' DECLARE @ConstraintName nvarchar(200) SELECT @ConstraintName = Name FROM SYS.DEFAULT_CONSTRAINTS WHERE PARENT_OBJECT_ID = OBJECT_ID(@tableNam... Add solution -
SQL 2021-09-15 21:21:01
sql get highest date from 3 tabels
SELECT MAX(MaxDate) FROM (SELECT MAX(TradeDate) AS MaxDate FROM Office.Transactions WHERE BrokerID = 1 AND TradeDate IS NOT NULLUNIONSELECT MAX(EntryDate) AS MaxDate FROM Office.IOI WHERE BrokerID = 1UNIONSELECT MAX(EntryDate) AS MaxDate FROM Office.Trade... Add solution -
Java 2021-09-15 18:51:04
java check if int is null
An int is not null, it may be 0 if not initialized. If you want an integer to be able to be null, you need to use Integer instead of int. Integer id; String name; public Integer getId() { return id; } Besides the statement if(person.equals(null)) can't... Add solution -
Java 2021-09-08 06:59:02
how to validate information against the database in java
public boolean regFamily(FamilyAccount myFam, Customer myCust) throws Exception { int fid = 0; try { String selectStatement2 = "SELECT * from familyok.user where nric = ? and familyid is NOT NULL "; PreparedStatement p... Add solution